Page 1
Module 4 Week 2
1
NAME
Vocabulary Percent of change A ratio that compares a change in quantity to an original
amount
Percent of
increase The percent of change that occurs when a quantity
increases
Percent of
decrease The percent of change that occurs when a quantity
decreases
Percent of error A ratio that compares the amount of the error to the
correct quantity
Sales tax
Money collected for the government that is a percent of
the selling price Tip gratuity The amount added to a price for a server usually a percent
of the bill Markup
the increase in the amount of an item in order for a store
to make a profit
Selling price the amount of money a customer pays for an item
The Week at a Glance MONDAY TUESDAY WEDNESDAY THURSDAY FRIDAY
Feb 8 Feb 9 Feb 10 Feb 11 Feb 12
Percent of Change Mark up Tax Tip QUIZ
PG 6 - 7 PG 10 - 11 PG 14 - 15 PG 17 No Homework
o Notes (2) o Good Job (3) o Work not
shown (1) o Incomplete
(1) o HW not
done(0)
o Notes (2) o Good Job (3) o Work not
shown (1) o Incomplete
(1) o HW not
done(0)
o Notes (2) o Good Job (3) o Work not
shown (1) o Incomplete
(1) o HW not
done(0)
o Notes (2) o Good Job (3) o Work not
shown (1) o Incomplete
(1) o HW not
done(0)
I can use proportional relationships to solve multi-step ratio and percent problems Examples simple interest tax markups and markdowns gratuities and commissions fees percent increase and decrease percent error
Module 4 Week 2
2
WARMUPS
MONDAY CHESS The Briarwood Middle School chess
club has 55 members 22 of the members are
in seventh grade What percent of the
members of the chess club are in seventh
grade
TUESDAY COLLEGE There are 225 students in eighth
grade at Jefferson Middle School A survey
shows that 64 of them are planning to
attend college How many Jefferson eighthndash
grade students are planning to attend college
WEDNESDAY
TENNIS In the city of Springfield 75 of the
parks have tennis courts If 15 parks have
tennis courts how many parks does Springfield
have altogether
THURSDAY BASEBALL In a recent season the Chicago
White Sox won 99 out of 162 games What
percent of games did the White Sox win
Round to the nearest tenth if necessary
Module 4 Week 2
3
Percent of Change
Compares the change in the quantity to the original amount
Percent of change =119886119898119900119906119899119905 119900119891 119888ℎ119886119899119892119890
119900119903119894119892119894119899119886119897 119886119898119900119906119899119905 times 100
If the original amount is increased it is called the percent of increase
119901119890119903119888119890119899119905 119900119891 119894119899119888119903119890119886119904119890 =119886119898119900119906119899119905 119900119891 119894119899119888119903119890119886119904119890
119900119903119894119892119894119899119886119897 119886119898119900119906119899119905 times 100
If the original amount is decreased it is called the percent of decrease
119901119890119903119888119890119899119905 119900119891 119889119890119888119903119890119886119904119890 =119886119898119900119906119899119905 119900119891 119889119890119888119903119890119886119904119890
119900119903119894119892119894119899119886119897 119886119898119900119906119899119905 times 100
Last year Nick was 5rsquo9rsquo tall This year he is 6rsquo2rdquo tall Find the percent of increase
Find the percent of change in the cost
of gasoline from 1970 to 2010 Round
to the nearest whole percent if
necessary
1970 $130 2010 $325
Module 4 Week 2
4
The original price of a radio was $20 Now it is on sale for $15 What is the
percent of decrease
Sallyrsquos first quarter grade in math 70 In the second quarter it was 90 Find
the percent of change
Percent of Error
119901119890119903119888119890119899119905 119900119891 119890119903119903119900119903 =119886119898119900119906119899119905 119900119891 119890119903119903119900119903
119886119888119905119906119886119897 119886119898119900119906119899119905times 100
Jill guessed that there were 300
gumballs in the jar There were
actually 400 What was her percent
of error
Module 4 Week 2
5
Wrap up
1 30 inches to 24 inches 2 $126 to $150
3 Jenny estimates the weight of her cat to be 10 pounds The cat actually
weighs 1375 lbs Find the percent of error
Module 4 Week 2
6
Name ______________________________ Percent of Change
Homework
Find the percent of change Round to the nearest whole percent State
whether the percent of change is an increase or decrease
1 15 yards to 18 yards 2 100 acres to 140 acres 3 $1560 to $1140
4 Three months ago Sam could walk 2 miles in 40 minutes Now he can walk 2
miles in 25 minutes Find the percent of change
5 Last school year the enrolment in Genoa Middle School was 465 students
This year the enrollment is 525 students Find the percent of change
6 In 2011 283 million CDs were sold In 2012 271 million CDs were sold Find the
percent of error
7 Each week Mr Jones goes to the grocery store He estimates that he will
spend $120 He actually spends $94 Find the percent of error
Module 4 Week 2
7
8 Mrs Jones goes to the mall She estimates that she will spend $120 She
actually spends $160 Find the percent of error
9 Mark estimated that 230 people would attend the choir concert There were
actually 300 people there Find the percent of error
HOT Problem
10 The cost of two sound systems were decreased by $10 The original costs
were $90 and $60 Without calculating which do you think had the greater
percent of decrease Why
11 Refer to the rectangles at the right Suppose the side lengths are doubled
a Find the percent of change in the perimeter
b Find the percent of change in the area
Module 4 Week 2
8
Mark-Up
Markup is the price increase that retailers use to make money
Whole sale Retail Markup
Calculating a markup
markup = whole sale price ( percent)
Calculating retail
Retail =whole sale + markup OR retail = (100 + percent)(whole sale)
Calculating the markup percent
119898119886119903119896119906119901 119901119890119903119888119890119899119905 = 119886119898119900119906119899119905 119900119891 119898119886119903119896 119906119901
119908ℎ119900119897119890 119904119886119897119890 119901119903119894119888119890
Do you want a cheese burger
Wegmanrsquos trade McDonaldrsquos trade Five Guys trade
Beef $399lb
$1 quarter pound
Quarter pounder with
Cheese
Little Cheese burger
(slightly bigger than a
quarter pounder 042 lbs) Cheese $299 16 slices
About $019 slice
Bun $269 for 8 buns
About $034 per
bun
$153 $389 $505
ldquoWould you like a drink with thatrdquo
Wegmanrsquos trade McDonaldrsquos trade Five Guys trade
Coke $025can
Sold in a multi
pack
$119 16 oz $249
Bottled
Water
$021bottle
Sold in multi
pack
$139 $201
Module 4 Week 2
9
Example
A store pays $56 for a GPS System The markup is 25 Find the retail price
A store pays $150 for a portable backboard system The markup is 40 What is the
retail price
It costs a fast food restaurant $003 for a fountain soda They sell it for $119 What is the
percent of the markup
Module 4 Week 2
10
Name ____________________________________________ MARKUP HOMEWORK
1 The wholesale price of a karaoke machine is $6225 The markup is 605 find the
retail price
2 A bike has a wholesale price of $270 If the markup is 24
what is the retail price
3 If it costs APPLE copy $8285 to make an 8GB IPod and they sell for $19999 what is the
percent of the markup
4 The retail price of a football jersey is $100 If the wholesale price was $2399 what is
the markup percent
Module 4 Week 2
11
5 A store buys a bracelet for $10 and the markup is 115 What is the retail price
6 A yoga mat is marked up 75 Find the retail price if the wholesale price was $850
7 Using the chart in the notes find the markup between eating a cheeseburger at
home and at McDonaldrsquos
What is the markup between home and Five Guys for a cheese burger
What is the markup between home and Five Guys for a water
Module 4 Week 2
12
SALES TAX
Sales tax is the additional amount of money charged on an item that people buy
Tax = percent x price
The total cost of an item is the price plus the tax
Total cost = price + tax OR Total cost = (100 + percent) x price
Examples
Drew wants to buy exercise equipment
that costs $140 and the sales tax is 575
What is the total cost of the equipment
METHOD 1
Find the sales tax
Add the tax to the price
Tax = percent (price)
Tax = 00575(140)
Tax = 805
Total Cost = price + tax
Total Cost = 140 + 805
Total Cost = $14805
METHOD 2
Add the percent of the tax to 100
(100 of the price + the of tax)
Multiply by the price
100 + 575 = 10575
Total cost = 10575(140)
Total Cost = $14805
What is the total cost of a sweatshirt that costs $42 when the tax is 55
Module 4 Week 2
13
Find the total cost of a $295 notebook with 5 tax
What is the sales tax on a chair priced $17890 when the tax rate is 55
Find the total cost of a $270 bike when the tax rate is 75
Find the tax on a $1500 computer when the tax rate is 8
Module 4 Week 2
14
Name_______________________________________ Tax Homework
Find the tax and total cost for each item
Item Work space Tax Total Cost
Price $120 Tax 6
Price $199 Tax 75
Price $2995 Tax 575
Price $849 Tax 625
Module 4 Week 2
15
Price $1299 Tax 775
Price $8950 Tax 6
Price $469 Tax 85
Price $1599 Tax 75
The Leather Depot buys a coat from the supplier for $90 and marks the price up 40
Molly buys the coat and pays $13482 What percent was the sales tax
Module 4 Week 2
16
TIP or GRATUITY
Tip or Gratuity is a small amount of money in return for a service The total price is the
price of the service plus the tip (and tax if there is any)
Who do I tip
Waiter Waitress
Food Delivery person
Barber Hairdresser
Hotel Maid
Cab driver
Dog groomer
Tow truck driver
Masseuse
Valet Parking
Manicure Technician
Calculating a tip
Tip = price ( percent)
Calculating total cost
Total = price + tip OR Total = (100 + percent)(price)
Example
Jimmy wants to tip 15 on a restaurant bill that is $35 Find the tip and total bill
A haircut cost $20 Sales tax is 55 Is $25 enough to cover the cost with a 15 tip
Scott usually tips 20 when he takes a cab If his commute cost $15 what will the total
cost be
Module 4 Week 2
17
Name ____________________________________________ TIP HOMEWORK
Find the tip for each
BILL Percent of
Gratuity
Tip
$5800 15
$4350 18
$2835
With
625 tax
20
$4200 15
$1300 10
$1750
With 6
tax
20
$12599 18
$7000 15
Timmy takes his dog to the groomer The fee is $75 plus 6 tax Is $90 enough for the
bill and a 15 tip
Page 2
Module 4 Week 2
2
WARMUPS
MONDAY CHESS The Briarwood Middle School chess
club has 55 members 22 of the members are
in seventh grade What percent of the
members of the chess club are in seventh
grade
TUESDAY COLLEGE There are 225 students in eighth
grade at Jefferson Middle School A survey
shows that 64 of them are planning to
attend college How many Jefferson eighthndash
grade students are planning to attend college
WEDNESDAY
TENNIS In the city of Springfield 75 of the
parks have tennis courts If 15 parks have
tennis courts how many parks does Springfield
have altogether
THURSDAY BASEBALL In a recent season the Chicago
White Sox won 99 out of 162 games What
percent of games did the White Sox win
Round to the nearest tenth if necessary
Module 4 Week 2
3
Percent of Change
Compares the change in the quantity to the original amount
Percent of change =119886119898119900119906119899119905 119900119891 119888ℎ119886119899119892119890
119900119903119894119892119894119899119886119897 119886119898119900119906119899119905 times 100
If the original amount is increased it is called the percent of increase
119901119890119903119888119890119899119905 119900119891 119894119899119888119903119890119886119904119890 =119886119898119900119906119899119905 119900119891 119894119899119888119903119890119886119904119890
119900119903119894119892119894119899119886119897 119886119898119900119906119899119905 times 100
If the original amount is decreased it is called the percent of decrease
119901119890119903119888119890119899119905 119900119891 119889119890119888119903119890119886119904119890 =119886119898119900119906119899119905 119900119891 119889119890119888119903119890119886119904119890
119900119903119894119892119894119899119886119897 119886119898119900119906119899119905 times 100
Last year Nick was 5rsquo9rsquo tall This year he is 6rsquo2rdquo tall Find the percent of increase
Find the percent of change in the cost
of gasoline from 1970 to 2010 Round
to the nearest whole percent if
necessary
1970 $130 2010 $325
Module 4 Week 2
4
The original price of a radio was $20 Now it is on sale for $15 What is the
percent of decrease
Sallyrsquos first quarter grade in math 70 In the second quarter it was 90 Find
the percent of change
Percent of Error
119901119890119903119888119890119899119905 119900119891 119890119903119903119900119903 =119886119898119900119906119899119905 119900119891 119890119903119903119900119903
119886119888119905119906119886119897 119886119898119900119906119899119905times 100
Jill guessed that there were 300
gumballs in the jar There were
actually 400 What was her percent
of error
Module 4 Week 2
5
Wrap up
1 30 inches to 24 inches 2 $126 to $150
3 Jenny estimates the weight of her cat to be 10 pounds The cat actually
weighs 1375 lbs Find the percent of error
Module 4 Week 2
6
Name ______________________________ Percent of Change
Homework
Find the percent of change Round to the nearest whole percent State
whether the percent of change is an increase or decrease
1 15 yards to 18 yards 2 100 acres to 140 acres 3 $1560 to $1140
4 Three months ago Sam could walk 2 miles in 40 minutes Now he can walk 2
miles in 25 minutes Find the percent of change
5 Last school year the enrolment in Genoa Middle School was 465 students
This year the enrollment is 525 students Find the percent of change
6 In 2011 283 million CDs were sold In 2012 271 million CDs were sold Find the
percent of error
7 Each week Mr Jones goes to the grocery store He estimates that he will
spend $120 He actually spends $94 Find the percent of error
Module 4 Week 2
7
8 Mrs Jones goes to the mall She estimates that she will spend $120 She
actually spends $160 Find the percent of error
9 Mark estimated that 230 people would attend the choir concert There were
actually 300 people there Find the percent of error
HOT Problem
10 The cost of two sound systems were decreased by $10 The original costs
were $90 and $60 Without calculating which do you think had the greater
percent of decrease Why
11 Refer to the rectangles at the right Suppose the side lengths are doubled
a Find the percent of change in the perimeter
b Find the percent of change in the area
Module 4 Week 2
8
Mark-Up
Markup is the price increase that retailers use to make money
Whole sale Retail Markup
Calculating a markup
markup = whole sale price ( percent)
Calculating retail
Retail =whole sale + markup OR retail = (100 + percent)(whole sale)
Calculating the markup percent
119898119886119903119896119906119901 119901119890119903119888119890119899119905 = 119886119898119900119906119899119905 119900119891 119898119886119903119896 119906119901
119908ℎ119900119897119890 119904119886119897119890 119901119903119894119888119890
Do you want a cheese burger
Wegmanrsquos trade McDonaldrsquos trade Five Guys trade
Beef $399lb
$1 quarter pound
Quarter pounder with
Cheese
Little Cheese burger
(slightly bigger than a
quarter pounder 042 lbs) Cheese $299 16 slices
About $019 slice
Bun $269 for 8 buns
About $034 per
bun
$153 $389 $505
ldquoWould you like a drink with thatrdquo
Wegmanrsquos trade McDonaldrsquos trade Five Guys trade
Coke $025can
Sold in a multi
pack
$119 16 oz $249
Bottled
Water
$021bottle
Sold in multi
pack
$139 $201
Module 4 Week 2
9
Example
A store pays $56 for a GPS System The markup is 25 Find the retail price
A store pays $150 for a portable backboard system The markup is 40 What is the
retail price
It costs a fast food restaurant $003 for a fountain soda They sell it for $119 What is the
percent of the markup
Module 4 Week 2
10
Name ____________________________________________ MARKUP HOMEWORK
1 The wholesale price of a karaoke machine is $6225 The markup is 605 find the
retail price
2 A bike has a wholesale price of $270 If the markup is 24
what is the retail price
3 If it costs APPLE copy $8285 to make an 8GB IPod and they sell for $19999 what is the
percent of the markup
4 The retail price of a football jersey is $100 If the wholesale price was $2399 what is
the markup percent
Module 4 Week 2
11
5 A store buys a bracelet for $10 and the markup is 115 What is the retail price
6 A yoga mat is marked up 75 Find the retail price if the wholesale price was $850
7 Using the chart in the notes find the markup between eating a cheeseburger at
home and at McDonaldrsquos
What is the markup between home and Five Guys for a cheese burger
What is the markup between home and Five Guys for a water
Module 4 Week 2
12
SALES TAX
Sales tax is the additional amount of money charged on an item that people buy
Tax = percent x price
The total cost of an item is the price plus the tax
Total cost = price + tax OR Total cost = (100 + percent) x price
Examples
Drew wants to buy exercise equipment
that costs $140 and the sales tax is 575
What is the total cost of the equipment
METHOD 1
Find the sales tax
Add the tax to the price
Tax = percent (price)
Tax = 00575(140)
Tax = 805
Total Cost = price + tax
Total Cost = 140 + 805
Total Cost = $14805
METHOD 2
Add the percent of the tax to 100
(100 of the price + the of tax)
Multiply by the price
100 + 575 = 10575
Total cost = 10575(140)
Total Cost = $14805
What is the total cost of a sweatshirt that costs $42 when the tax is 55
Module 4 Week 2
13
Find the total cost of a $295 notebook with 5 tax
What is the sales tax on a chair priced $17890 when the tax rate is 55
Find the total cost of a $270 bike when the tax rate is 75
Find the tax on a $1500 computer when the tax rate is 8
Module 4 Week 2
14
Name_______________________________________ Tax Homework
Find the tax and total cost for each item
Item Work space Tax Total Cost
Price $120 Tax 6
Price $199 Tax 75
Price $2995 Tax 575
Price $849 Tax 625
Module 4 Week 2
15
Price $1299 Tax 775
Price $8950 Tax 6
Price $469 Tax 85
Price $1599 Tax 75
The Leather Depot buys a coat from the supplier for $90 and marks the price up 40
Molly buys the coat and pays $13482 What percent was the sales tax
Module 4 Week 2
16
TIP or GRATUITY
Tip or Gratuity is a small amount of money in return for a service The total price is the
price of the service plus the tip (and tax if there is any)
Who do I tip
Waiter Waitress
Food Delivery person
Barber Hairdresser
Hotel Maid
Cab driver
Dog groomer
Tow truck driver
Masseuse
Valet Parking
Manicure Technician
Calculating a tip
Tip = price ( percent)
Calculating total cost
Total = price + tip OR Total = (100 + percent)(price)
Example
Jimmy wants to tip 15 on a restaurant bill that is $35 Find the tip and total bill
A haircut cost $20 Sales tax is 55 Is $25 enough to cover the cost with a 15 tip
Scott usually tips 20 when he takes a cab If his commute cost $15 what will the total
cost be
Module 4 Week 2
17
Name ____________________________________________ TIP HOMEWORK
Find the tip for each
BILL Percent of
Gratuity
Tip
$5800 15
$4350 18
$2835
With
625 tax
20
$4200 15
$1300 10
$1750
With 6
tax
20
$12599 18
$7000 15
Timmy takes his dog to the groomer The fee is $75 plus 6 tax Is $90 enough for the
bill and a 15 tip
Page 3
Module 4 Week 2
3
Percent of Change
Compares the change in the quantity to the original amount
Percent of change =119886119898119900119906119899119905 119900119891 119888ℎ119886119899119892119890
119900119903119894119892119894119899119886119897 119886119898119900119906119899119905 times 100
If the original amount is increased it is called the percent of increase
119901119890119903119888119890119899119905 119900119891 119894119899119888119903119890119886119904119890 =119886119898119900119906119899119905 119900119891 119894119899119888119903119890119886119904119890
119900119903119894119892119894119899119886119897 119886119898119900119906119899119905 times 100
If the original amount is decreased it is called the percent of decrease
119901119890119903119888119890119899119905 119900119891 119889119890119888119903119890119886119904119890 =119886119898119900119906119899119905 119900119891 119889119890119888119903119890119886119904119890
119900119903119894119892119894119899119886119897 119886119898119900119906119899119905 times 100
Last year Nick was 5rsquo9rsquo tall This year he is 6rsquo2rdquo tall Find the percent of increase
Find the percent of change in the cost
of gasoline from 1970 to 2010 Round
to the nearest whole percent if
necessary
1970 $130 2010 $325
Module 4 Week 2
4
The original price of a radio was $20 Now it is on sale for $15 What is the
percent of decrease
Sallyrsquos first quarter grade in math 70 In the second quarter it was 90 Find
the percent of change
Percent of Error
119901119890119903119888119890119899119905 119900119891 119890119903119903119900119903 =119886119898119900119906119899119905 119900119891 119890119903119903119900119903
119886119888119905119906119886119897 119886119898119900119906119899119905times 100
Jill guessed that there were 300
gumballs in the jar There were
actually 400 What was her percent
of error
Module 4 Week 2
5
Wrap up
1 30 inches to 24 inches 2 $126 to $150
3 Jenny estimates the weight of her cat to be 10 pounds The cat actually
weighs 1375 lbs Find the percent of error
Module 4 Week 2
6
Name ______________________________ Percent of Change
Homework
Find the percent of change Round to the nearest whole percent State
whether the percent of change is an increase or decrease
1 15 yards to 18 yards 2 100 acres to 140 acres 3 $1560 to $1140
4 Three months ago Sam could walk 2 miles in 40 minutes Now he can walk 2
miles in 25 minutes Find the percent of change
5 Last school year the enrolment in Genoa Middle School was 465 students
This year the enrollment is 525 students Find the percent of change
6 In 2011 283 million CDs were sold In 2012 271 million CDs were sold Find the
percent of error
7 Each week Mr Jones goes to the grocery store He estimates that he will
spend $120 He actually spends $94 Find the percent of error
Module 4 Week 2
7
8 Mrs Jones goes to the mall She estimates that she will spend $120 She
actually spends $160 Find the percent of error
9 Mark estimated that 230 people would attend the choir concert There were
actually 300 people there Find the percent of error
HOT Problem
10 The cost of two sound systems were decreased by $10 The original costs
were $90 and $60 Without calculating which do you think had the greater
percent of decrease Why
11 Refer to the rectangles at the right Suppose the side lengths are doubled
a Find the percent of change in the perimeter
b Find the percent of change in the area
Module 4 Week 2
8
Mark-Up
Markup is the price increase that retailers use to make money
Whole sale Retail Markup
Calculating a markup
markup = whole sale price ( percent)
Calculating retail
Retail =whole sale + markup OR retail = (100 + percent)(whole sale)
Calculating the markup percent
119898119886119903119896119906119901 119901119890119903119888119890119899119905 = 119886119898119900119906119899119905 119900119891 119898119886119903119896 119906119901
119908ℎ119900119897119890 119904119886119897119890 119901119903119894119888119890
Do you want a cheese burger
Wegmanrsquos trade McDonaldrsquos trade Five Guys trade
Beef $399lb
$1 quarter pound
Quarter pounder with
Cheese
Little Cheese burger
(slightly bigger than a
quarter pounder 042 lbs) Cheese $299 16 slices
About $019 slice
Bun $269 for 8 buns
About $034 per
bun
$153 $389 $505
ldquoWould you like a drink with thatrdquo
Wegmanrsquos trade McDonaldrsquos trade Five Guys trade
Coke $025can
Sold in a multi
pack
$119 16 oz $249
Bottled
Water
$021bottle
Sold in multi
pack
$139 $201
Module 4 Week 2
9
Example
A store pays $56 for a GPS System The markup is 25 Find the retail price
A store pays $150 for a portable backboard system The markup is 40 What is the
retail price
It costs a fast food restaurant $003 for a fountain soda They sell it for $119 What is the
percent of the markup
Module 4 Week 2
10
Name ____________________________________________ MARKUP HOMEWORK
1 The wholesale price of a karaoke machine is $6225 The markup is 605 find the
retail price
2 A bike has a wholesale price of $270 If the markup is 24
what is the retail price
3 If it costs APPLE copy $8285 to make an 8GB IPod and they sell for $19999 what is the
percent of the markup
4 The retail price of a football jersey is $100 If the wholesale price was $2399 what is
the markup percent
Module 4 Week 2
11
5 A store buys a bracelet for $10 and the markup is 115 What is the retail price
6 A yoga mat is marked up 75 Find the retail price if the wholesale price was $850
7 Using the chart in the notes find the markup between eating a cheeseburger at
home and at McDonaldrsquos
What is the markup between home and Five Guys for a cheese burger
What is the markup between home and Five Guys for a water
Module 4 Week 2
12
SALES TAX
Sales tax is the additional amount of money charged on an item that people buy
Tax = percent x price
The total cost of an item is the price plus the tax
Total cost = price + tax OR Total cost = (100 + percent) x price
Examples
Drew wants to buy exercise equipment
that costs $140 and the sales tax is 575
What is the total cost of the equipment
METHOD 1
Find the sales tax
Add the tax to the price
Tax = percent (price)
Tax = 00575(140)
Tax = 805
Total Cost = price + tax
Total Cost = 140 + 805
Total Cost = $14805
METHOD 2
Add the percent of the tax to 100
(100 of the price + the of tax)
Multiply by the price
100 + 575 = 10575
Total cost = 10575(140)
Total Cost = $14805
What is the total cost of a sweatshirt that costs $42 when the tax is 55
Module 4 Week 2
13
Find the total cost of a $295 notebook with 5 tax
What is the sales tax on a chair priced $17890 when the tax rate is 55
Find the total cost of a $270 bike when the tax rate is 75
Find the tax on a $1500 computer when the tax rate is 8
Module 4 Week 2
14
Name_______________________________________ Tax Homework
Find the tax and total cost for each item
Item Work space Tax Total Cost
Price $120 Tax 6
Price $199 Tax 75
Price $2995 Tax 575
Price $849 Tax 625
Module 4 Week 2
15
Price $1299 Tax 775
Price $8950 Tax 6
Price $469 Tax 85
Price $1599 Tax 75
The Leather Depot buys a coat from the supplier for $90 and marks the price up 40
Molly buys the coat and pays $13482 What percent was the sales tax
Module 4 Week 2
16
TIP or GRATUITY
Tip or Gratuity is a small amount of money in return for a service The total price is the
price of the service plus the tip (and tax if there is any)
Who do I tip
Waiter Waitress
Food Delivery person
Barber Hairdresser
Hotel Maid
Cab driver
Dog groomer
Tow truck driver
Masseuse
Valet Parking
Manicure Technician
Calculating a tip
Tip = price ( percent)
Calculating total cost
Total = price + tip OR Total = (100 + percent)(price)
Example
Jimmy wants to tip 15 on a restaurant bill that is $35 Find the tip and total bill
A haircut cost $20 Sales tax is 55 Is $25 enough to cover the cost with a 15 tip
Scott usually tips 20 when he takes a cab If his commute cost $15 what will the total
cost be
Module 4 Week 2
17
Name ____________________________________________ TIP HOMEWORK
Find the tip for each
BILL Percent of
Gratuity
Tip
$5800 15
$4350 18
$2835
With
625 tax
20
$4200 15
$1300 10
$1750
With 6
tax
20
$12599 18
$7000 15
Timmy takes his dog to the groomer The fee is $75 plus 6 tax Is $90 enough for the
bill and a 15 tip
Page 4
Module 4 Week 2
4
The original price of a radio was $20 Now it is on sale for $15 What is the
percent of decrease
Sallyrsquos first quarter grade in math 70 In the second quarter it was 90 Find
the percent of change
Percent of Error
119901119890119903119888119890119899119905 119900119891 119890119903119903119900119903 =119886119898119900119906119899119905 119900119891 119890119903119903119900119903
119886119888119905119906119886119897 119886119898119900119906119899119905times 100
Jill guessed that there were 300
gumballs in the jar There were
actually 400 What was her percent
of error
Module 4 Week 2
5
Wrap up
1 30 inches to 24 inches 2 $126 to $150
3 Jenny estimates the weight of her cat to be 10 pounds The cat actually
weighs 1375 lbs Find the percent of error
Module 4 Week 2
6
Name ______________________________ Percent of Change
Homework
Find the percent of change Round to the nearest whole percent State
whether the percent of change is an increase or decrease
1 15 yards to 18 yards 2 100 acres to 140 acres 3 $1560 to $1140
4 Three months ago Sam could walk 2 miles in 40 minutes Now he can walk 2
miles in 25 minutes Find the percent of change
5 Last school year the enrolment in Genoa Middle School was 465 students
This year the enrollment is 525 students Find the percent of change
6 In 2011 283 million CDs were sold In 2012 271 million CDs were sold Find the
percent of error
7 Each week Mr Jones goes to the grocery store He estimates that he will
spend $120 He actually spends $94 Find the percent of error
Module 4 Week 2
7
8 Mrs Jones goes to the mall She estimates that she will spend $120 She
actually spends $160 Find the percent of error
9 Mark estimated that 230 people would attend the choir concert There were
actually 300 people there Find the percent of error
HOT Problem
10 The cost of two sound systems were decreased by $10 The original costs
were $90 and $60 Without calculating which do you think had the greater
percent of decrease Why
11 Refer to the rectangles at the right Suppose the side lengths are doubled
a Find the percent of change in the perimeter
b Find the percent of change in the area
Module 4 Week 2
8
Mark-Up
Markup is the price increase that retailers use to make money
Whole sale Retail Markup
Calculating a markup
markup = whole sale price ( percent)
Calculating retail
Retail =whole sale + markup OR retail = (100 + percent)(whole sale)
Calculating the markup percent
119898119886119903119896119906119901 119901119890119903119888119890119899119905 = 119886119898119900119906119899119905 119900119891 119898119886119903119896 119906119901
119908ℎ119900119897119890 119904119886119897119890 119901119903119894119888119890
Do you want a cheese burger
Wegmanrsquos trade McDonaldrsquos trade Five Guys trade
Beef $399lb
$1 quarter pound
Quarter pounder with
Cheese
Little Cheese burger
(slightly bigger than a
quarter pounder 042 lbs) Cheese $299 16 slices
About $019 slice
Bun $269 for 8 buns
About $034 per
bun
$153 $389 $505
ldquoWould you like a drink with thatrdquo
Wegmanrsquos trade McDonaldrsquos trade Five Guys trade
Coke $025can
Sold in a multi
pack
$119 16 oz $249
Bottled
Water
$021bottle
Sold in multi
pack
$139 $201
Module 4 Week 2
9
Example
A store pays $56 for a GPS System The markup is 25 Find the retail price
A store pays $150 for a portable backboard system The markup is 40 What is the
retail price
It costs a fast food restaurant $003 for a fountain soda They sell it for $119 What is the
percent of the markup
Module 4 Week 2
10
Name ____________________________________________ MARKUP HOMEWORK
1 The wholesale price of a karaoke machine is $6225 The markup is 605 find the
retail price
2 A bike has a wholesale price of $270 If the markup is 24
what is the retail price
3 If it costs APPLE copy $8285 to make an 8GB IPod and they sell for $19999 what is the
percent of the markup
4 The retail price of a football jersey is $100 If the wholesale price was $2399 what is
the markup percent
Module 4 Week 2
11
5 A store buys a bracelet for $10 and the markup is 115 What is the retail price
6 A yoga mat is marked up 75 Find the retail price if the wholesale price was $850
7 Using the chart in the notes find the markup between eating a cheeseburger at
home and at McDonaldrsquos
What is the markup between home and Five Guys for a cheese burger
What is the markup between home and Five Guys for a water
Module 4 Week 2
12
SALES TAX
Sales tax is the additional amount of money charged on an item that people buy
Tax = percent x price
The total cost of an item is the price plus the tax
Total cost = price + tax OR Total cost = (100 + percent) x price
Examples
Drew wants to buy exercise equipment
that costs $140 and the sales tax is 575
What is the total cost of the equipment
METHOD 1
Find the sales tax
Add the tax to the price
Tax = percent (price)
Tax = 00575(140)
Tax = 805
Total Cost = price + tax
Total Cost = 140 + 805
Total Cost = $14805
METHOD 2
Add the percent of the tax to 100
(100 of the price + the of tax)
Multiply by the price
100 + 575 = 10575
Total cost = 10575(140)
Total Cost = $14805
What is the total cost of a sweatshirt that costs $42 when the tax is 55
Module 4 Week 2
13
Find the total cost of a $295 notebook with 5 tax
What is the sales tax on a chair priced $17890 when the tax rate is 55
Find the total cost of a $270 bike when the tax rate is 75
Find the tax on a $1500 computer when the tax rate is 8
Module 4 Week 2
14
Name_______________________________________ Tax Homework
Find the tax and total cost for each item
Item Work space Tax Total Cost
Price $120 Tax 6
Price $199 Tax 75
Price $2995 Tax 575
Price $849 Tax 625
Module 4 Week 2
15
Price $1299 Tax 775
Price $8950 Tax 6
Price $469 Tax 85
Price $1599 Tax 75
The Leather Depot buys a coat from the supplier for $90 and marks the price up 40
Molly buys the coat and pays $13482 What percent was the sales tax
Module 4 Week 2
16
TIP or GRATUITY
Tip or Gratuity is a small amount of money in return for a service The total price is the
price of the service plus the tip (and tax if there is any)
Who do I tip
Waiter Waitress
Food Delivery person
Barber Hairdresser
Hotel Maid
Cab driver
Dog groomer
Tow truck driver
Masseuse
Valet Parking
Manicure Technician
Calculating a tip
Tip = price ( percent)
Calculating total cost
Total = price + tip OR Total = (100 + percent)(price)
Example
Jimmy wants to tip 15 on a restaurant bill that is $35 Find the tip and total bill
A haircut cost $20 Sales tax is 55 Is $25 enough to cover the cost with a 15 tip
Scott usually tips 20 when he takes a cab If his commute cost $15 what will the total
cost be
Module 4 Week 2
17
Name ____________________________________________ TIP HOMEWORK
Find the tip for each
BILL Percent of
Gratuity
Tip
$5800 15
$4350 18
$2835
With
625 tax
20
$4200 15
$1300 10
$1750
With 6
tax
20
$12599 18
$7000 15
Timmy takes his dog to the groomer The fee is $75 plus 6 tax Is $90 enough for the
bill and a 15 tip
Page 5
Module 4 Week 2
5
Wrap up
1 30 inches to 24 inches 2 $126 to $150
3 Jenny estimates the weight of her cat to be 10 pounds The cat actually
weighs 1375 lbs Find the percent of error
Module 4 Week 2
6
Name ______________________________ Percent of Change
Homework
Find the percent of change Round to the nearest whole percent State
whether the percent of change is an increase or decrease
1 15 yards to 18 yards 2 100 acres to 140 acres 3 $1560 to $1140
4 Three months ago Sam could walk 2 miles in 40 minutes Now he can walk 2
miles in 25 minutes Find the percent of change
5 Last school year the enrolment in Genoa Middle School was 465 students
This year the enrollment is 525 students Find the percent of change
6 In 2011 283 million CDs were sold In 2012 271 million CDs were sold Find the
percent of error
7 Each week Mr Jones goes to the grocery store He estimates that he will
spend $120 He actually spends $94 Find the percent of error
Module 4 Week 2
7
8 Mrs Jones goes to the mall She estimates that she will spend $120 She
actually spends $160 Find the percent of error
9 Mark estimated that 230 people would attend the choir concert There were
actually 300 people there Find the percent of error
HOT Problem
10 The cost of two sound systems were decreased by $10 The original costs
were $90 and $60 Without calculating which do you think had the greater
percent of decrease Why
11 Refer to the rectangles at the right Suppose the side lengths are doubled
a Find the percent of change in the perimeter
b Find the percent of change in the area
Module 4 Week 2
8
Mark-Up
Markup is the price increase that retailers use to make money
Whole sale Retail Markup
Calculating a markup
markup = whole sale price ( percent)
Calculating retail
Retail =whole sale + markup OR retail = (100 + percent)(whole sale)
Calculating the markup percent
119898119886119903119896119906119901 119901119890119903119888119890119899119905 = 119886119898119900119906119899119905 119900119891 119898119886119903119896 119906119901
119908ℎ119900119897119890 119904119886119897119890 119901119903119894119888119890
Do you want a cheese burger
Wegmanrsquos trade McDonaldrsquos trade Five Guys trade
Beef $399lb
$1 quarter pound
Quarter pounder with
Cheese
Little Cheese burger
(slightly bigger than a
quarter pounder 042 lbs) Cheese $299 16 slices
About $019 slice
Bun $269 for 8 buns
About $034 per
bun
$153 $389 $505
ldquoWould you like a drink with thatrdquo
Wegmanrsquos trade McDonaldrsquos trade Five Guys trade
Coke $025can
Sold in a multi
pack
$119 16 oz $249
Bottled
Water
$021bottle
Sold in multi
pack
$139 $201
Module 4 Week 2
9
Example
A store pays $56 for a GPS System The markup is 25 Find the retail price
A store pays $150 for a portable backboard system The markup is 40 What is the
retail price
It costs a fast food restaurant $003 for a fountain soda They sell it for $119 What is the
percent of the markup
Module 4 Week 2
10
Name ____________________________________________ MARKUP HOMEWORK
1 The wholesale price of a karaoke machine is $6225 The markup is 605 find the
retail price
2 A bike has a wholesale price of $270 If the markup is 24
what is the retail price
3 If it costs APPLE copy $8285 to make an 8GB IPod and they sell for $19999 what is the
percent of the markup
4 The retail price of a football jersey is $100 If the wholesale price was $2399 what is
the markup percent
Module 4 Week 2
11
5 A store buys a bracelet for $10 and the markup is 115 What is the retail price
6 A yoga mat is marked up 75 Find the retail price if the wholesale price was $850
7 Using the chart in the notes find the markup between eating a cheeseburger at
home and at McDonaldrsquos
What is the markup between home and Five Guys for a cheese burger
What is the markup between home and Five Guys for a water
Module 4 Week 2
12
SALES TAX
Sales tax is the additional amount of money charged on an item that people buy
Tax = percent x price
The total cost of an item is the price plus the tax
Total cost = price + tax OR Total cost = (100 + percent) x price
Examples
Drew wants to buy exercise equipment
that costs $140 and the sales tax is 575
What is the total cost of the equipment
METHOD 1
Find the sales tax
Add the tax to the price
Tax = percent (price)
Tax = 00575(140)
Tax = 805
Total Cost = price + tax
Total Cost = 140 + 805
Total Cost = $14805
METHOD 2
Add the percent of the tax to 100
(100 of the price + the of tax)
Multiply by the price
100 + 575 = 10575
Total cost = 10575(140)
Total Cost = $14805
What is the total cost of a sweatshirt that costs $42 when the tax is 55
Module 4 Week 2
13
Find the total cost of a $295 notebook with 5 tax
What is the sales tax on a chair priced $17890 when the tax rate is 55
Find the total cost of a $270 bike when the tax rate is 75
Find the tax on a $1500 computer when the tax rate is 8
Module 4 Week 2
14
Name_______________________________________ Tax Homework
Find the tax and total cost for each item
Item Work space Tax Total Cost
Price $120 Tax 6
Price $199 Tax 75
Price $2995 Tax 575
Price $849 Tax 625
Module 4 Week 2
15
Price $1299 Tax 775
Price $8950 Tax 6
Price $469 Tax 85
Price $1599 Tax 75
The Leather Depot buys a coat from the supplier for $90 and marks the price up 40
Molly buys the coat and pays $13482 What percent was the sales tax
Module 4 Week 2
16
TIP or GRATUITY
Tip or Gratuity is a small amount of money in return for a service The total price is the
price of the service plus the tip (and tax if there is any)
Who do I tip
Waiter Waitress
Food Delivery person
Barber Hairdresser
Hotel Maid
Cab driver
Dog groomer
Tow truck driver
Masseuse
Valet Parking
Manicure Technician
Calculating a tip
Tip = price ( percent)
Calculating total cost
Total = price + tip OR Total = (100 + percent)(price)
Example
Jimmy wants to tip 15 on a restaurant bill that is $35 Find the tip and total bill
A haircut cost $20 Sales tax is 55 Is $25 enough to cover the cost with a 15 tip
Scott usually tips 20 when he takes a cab If his commute cost $15 what will the total
cost be
Module 4 Week 2
17
Name ____________________________________________ TIP HOMEWORK
Find the tip for each
BILL Percent of
Gratuity
Tip
$5800 15
$4350 18
$2835
With
625 tax
20
$4200 15
$1300 10
$1750
With 6
tax
20
$12599 18
$7000 15
Timmy takes his dog to the groomer The fee is $75 plus 6 tax Is $90 enough for the
bill and a 15 tip
Page 6
Module 4 Week 2
6
Name ______________________________ Percent of Change
Homework
Find the percent of change Round to the nearest whole percent State
whether the percent of change is an increase or decrease
1 15 yards to 18 yards 2 100 acres to 140 acres 3 $1560 to $1140
4 Three months ago Sam could walk 2 miles in 40 minutes Now he can walk 2
miles in 25 minutes Find the percent of change
5 Last school year the enrolment in Genoa Middle School was 465 students
This year the enrollment is 525 students Find the percent of change
6 In 2011 283 million CDs were sold In 2012 271 million CDs were sold Find the
percent of error
7 Each week Mr Jones goes to the grocery store He estimates that he will
spend $120 He actually spends $94 Find the percent of error
Module 4 Week 2
7
8 Mrs Jones goes to the mall She estimates that she will spend $120 She
actually spends $160 Find the percent of error
9 Mark estimated that 230 people would attend the choir concert There were
actually 300 people there Find the percent of error
HOT Problem
10 The cost of two sound systems were decreased by $10 The original costs
were $90 and $60 Without calculating which do you think had the greater
percent of decrease Why
11 Refer to the rectangles at the right Suppose the side lengths are doubled
a Find the percent of change in the perimeter
b Find the percent of change in the area
Module 4 Week 2
8
Mark-Up
Markup is the price increase that retailers use to make money
Whole sale Retail Markup
Calculating a markup
markup = whole sale price ( percent)
Calculating retail
Retail =whole sale + markup OR retail = (100 + percent)(whole sale)
Calculating the markup percent
119898119886119903119896119906119901 119901119890119903119888119890119899119905 = 119886119898119900119906119899119905 119900119891 119898119886119903119896 119906119901
119908ℎ119900119897119890 119904119886119897119890 119901119903119894119888119890
Do you want a cheese burger
Wegmanrsquos trade McDonaldrsquos trade Five Guys trade
Beef $399lb
$1 quarter pound
Quarter pounder with
Cheese
Little Cheese burger
(slightly bigger than a
quarter pounder 042 lbs) Cheese $299 16 slices
About $019 slice
Bun $269 for 8 buns
About $034 per
bun
$153 $389 $505
ldquoWould you like a drink with thatrdquo
Wegmanrsquos trade McDonaldrsquos trade Five Guys trade
Coke $025can
Sold in a multi
pack
$119 16 oz $249
Bottled
Water
$021bottle
Sold in multi
pack
$139 $201
Module 4 Week 2
9
Example
A store pays $56 for a GPS System The markup is 25 Find the retail price
A store pays $150 for a portable backboard system The markup is 40 What is the
retail price
It costs a fast food restaurant $003 for a fountain soda They sell it for $119 What is the
percent of the markup
Module 4 Week 2
10
Name ____________________________________________ MARKUP HOMEWORK
1 The wholesale price of a karaoke machine is $6225 The markup is 605 find the
retail price
2 A bike has a wholesale price of $270 If the markup is 24
what is the retail price
3 If it costs APPLE copy $8285 to make an 8GB IPod and they sell for $19999 what is the
percent of the markup
4 The retail price of a football jersey is $100 If the wholesale price was $2399 what is
the markup percent
Module 4 Week 2
11
5 A store buys a bracelet for $10 and the markup is 115 What is the retail price
6 A yoga mat is marked up 75 Find the retail price if the wholesale price was $850
7 Using the chart in the notes find the markup between eating a cheeseburger at
home and at McDonaldrsquos
What is the markup between home and Five Guys for a cheese burger
What is the markup between home and Five Guys for a water
Module 4 Week 2
12
SALES TAX
Sales tax is the additional amount of money charged on an item that people buy
Tax = percent x price
The total cost of an item is the price plus the tax
Total cost = price + tax OR Total cost = (100 + percent) x price
Examples
Drew wants to buy exercise equipment
that costs $140 and the sales tax is 575
What is the total cost of the equipment
METHOD 1
Find the sales tax
Add the tax to the price
Tax = percent (price)
Tax = 00575(140)
Tax = 805
Total Cost = price + tax
Total Cost = 140 + 805
Total Cost = $14805
METHOD 2
Add the percent of the tax to 100
(100 of the price + the of tax)
Multiply by the price
100 + 575 = 10575
Total cost = 10575(140)
Total Cost = $14805
What is the total cost of a sweatshirt that costs $42 when the tax is 55
Module 4 Week 2
13
Find the total cost of a $295 notebook with 5 tax
What is the sales tax on a chair priced $17890 when the tax rate is 55
Find the total cost of a $270 bike when the tax rate is 75
Find the tax on a $1500 computer when the tax rate is 8
Module 4 Week 2
14
Name_______________________________________ Tax Homework
Find the tax and total cost for each item
Item Work space Tax Total Cost
Price $120 Tax 6
Price $199 Tax 75
Price $2995 Tax 575
Price $849 Tax 625
Module 4 Week 2
15
Price $1299 Tax 775
Price $8950 Tax 6
Price $469 Tax 85
Price $1599 Tax 75
The Leather Depot buys a coat from the supplier for $90 and marks the price up 40
Molly buys the coat and pays $13482 What percent was the sales tax
Module 4 Week 2
16
TIP or GRATUITY
Tip or Gratuity is a small amount of money in return for a service The total price is the
price of the service plus the tip (and tax if there is any)
Who do I tip
Waiter Waitress
Food Delivery person
Barber Hairdresser
Hotel Maid
Cab driver
Dog groomer
Tow truck driver
Masseuse
Valet Parking
Manicure Technician
Calculating a tip
Tip = price ( percent)
Calculating total cost
Total = price + tip OR Total = (100 + percent)(price)
Example
Jimmy wants to tip 15 on a restaurant bill that is $35 Find the tip and total bill
A haircut cost $20 Sales tax is 55 Is $25 enough to cover the cost with a 15 tip
Scott usually tips 20 when he takes a cab If his commute cost $15 what will the total
cost be
Module 4 Week 2
17
Name ____________________________________________ TIP HOMEWORK
Find the tip for each
BILL Percent of
Gratuity
Tip
$5800 15
$4350 18
$2835
With
625 tax
20
$4200 15
$1300 10
$1750
With 6
tax
20
$12599 18
$7000 15
Timmy takes his dog to the groomer The fee is $75 plus 6 tax Is $90 enough for the
bill and a 15 tip
Page 7
Module 4 Week 2
7
8 Mrs Jones goes to the mall She estimates that she will spend $120 She
actually spends $160 Find the percent of error
9 Mark estimated that 230 people would attend the choir concert There were
actually 300 people there Find the percent of error
HOT Problem
10 The cost of two sound systems were decreased by $10 The original costs
were $90 and $60 Without calculating which do you think had the greater
percent of decrease Why
11 Refer to the rectangles at the right Suppose the side lengths are doubled
a Find the percent of change in the perimeter
b Find the percent of change in the area
Module 4 Week 2
8
Mark-Up
Markup is the price increase that retailers use to make money
Whole sale Retail Markup
Calculating a markup
markup = whole sale price ( percent)
Calculating retail
Retail =whole sale + markup OR retail = (100 + percent)(whole sale)
Calculating the markup percent
119898119886119903119896119906119901 119901119890119903119888119890119899119905 = 119886119898119900119906119899119905 119900119891 119898119886119903119896 119906119901
119908ℎ119900119897119890 119904119886119897119890 119901119903119894119888119890
Do you want a cheese burger
Wegmanrsquos trade McDonaldrsquos trade Five Guys trade
Beef $399lb
$1 quarter pound
Quarter pounder with
Cheese
Little Cheese burger
(slightly bigger than a
quarter pounder 042 lbs) Cheese $299 16 slices
About $019 slice
Bun $269 for 8 buns
About $034 per
bun
$153 $389 $505
ldquoWould you like a drink with thatrdquo
Wegmanrsquos trade McDonaldrsquos trade Five Guys trade
Coke $025can
Sold in a multi
pack
$119 16 oz $249
Bottled
Water
$021bottle
Sold in multi
pack
$139 $201
Module 4 Week 2
9
Example
A store pays $56 for a GPS System The markup is 25 Find the retail price
A store pays $150 for a portable backboard system The markup is 40 What is the
retail price
It costs a fast food restaurant $003 for a fountain soda They sell it for $119 What is the
percent of the markup
Module 4 Week 2
10
Name ____________________________________________ MARKUP HOMEWORK
1 The wholesale price of a karaoke machine is $6225 The markup is 605 find the
retail price
2 A bike has a wholesale price of $270 If the markup is 24
what is the retail price
3 If it costs APPLE copy $8285 to make an 8GB IPod and they sell for $19999 what is the
percent of the markup
4 The retail price of a football jersey is $100 If the wholesale price was $2399 what is
the markup percent
Module 4 Week 2
11
5 A store buys a bracelet for $10 and the markup is 115 What is the retail price
6 A yoga mat is marked up 75 Find the retail price if the wholesale price was $850
7 Using the chart in the notes find the markup between eating a cheeseburger at
home and at McDonaldrsquos
What is the markup between home and Five Guys for a cheese burger
What is the markup between home and Five Guys for a water
Module 4 Week 2
12
SALES TAX
Sales tax is the additional amount of money charged on an item that people buy
Tax = percent x price
The total cost of an item is the price plus the tax
Total cost = price + tax OR Total cost = (100 + percent) x price
Examples
Drew wants to buy exercise equipment
that costs $140 and the sales tax is 575
What is the total cost of the equipment
METHOD 1
Find the sales tax
Add the tax to the price
Tax = percent (price)
Tax = 00575(140)
Tax = 805
Total Cost = price + tax
Total Cost = 140 + 805
Total Cost = $14805
METHOD 2
Add the percent of the tax to 100
(100 of the price + the of tax)
Multiply by the price
100 + 575 = 10575
Total cost = 10575(140)
Total Cost = $14805
What is the total cost of a sweatshirt that costs $42 when the tax is 55
Module 4 Week 2
13
Find the total cost of a $295 notebook with 5 tax
What is the sales tax on a chair priced $17890 when the tax rate is 55
Find the total cost of a $270 bike when the tax rate is 75
Find the tax on a $1500 computer when the tax rate is 8
Module 4 Week 2
14
Name_______________________________________ Tax Homework
Find the tax and total cost for each item
Item Work space Tax Total Cost
Price $120 Tax 6
Price $199 Tax 75
Price $2995 Tax 575
Price $849 Tax 625
Module 4 Week 2
15
Price $1299 Tax 775
Price $8950 Tax 6
Price $469 Tax 85
Price $1599 Tax 75
The Leather Depot buys a coat from the supplier for $90 and marks the price up 40
Molly buys the coat and pays $13482 What percent was the sales tax
Module 4 Week 2
16
TIP or GRATUITY
Tip or Gratuity is a small amount of money in return for a service The total price is the
price of the service plus the tip (and tax if there is any)
Who do I tip
Waiter Waitress
Food Delivery person
Barber Hairdresser
Hotel Maid
Cab driver
Dog groomer
Tow truck driver
Masseuse
Valet Parking
Manicure Technician
Calculating a tip
Tip = price ( percent)
Calculating total cost
Total = price + tip OR Total = (100 + percent)(price)
Example
Jimmy wants to tip 15 on a restaurant bill that is $35 Find the tip and total bill
A haircut cost $20 Sales tax is 55 Is $25 enough to cover the cost with a 15 tip
Scott usually tips 20 when he takes a cab If his commute cost $15 what will the total
cost be
Module 4 Week 2
17
Name ____________________________________________ TIP HOMEWORK
Find the tip for each
BILL Percent of
Gratuity
Tip
$5800 15
$4350 18
$2835
With
625 tax
20
$4200 15
$1300 10
$1750
With 6
tax
20
$12599 18
$7000 15
Timmy takes his dog to the groomer The fee is $75 plus 6 tax Is $90 enough for the
bill and a 15 tip
Page 8
Module 4 Week 2
8
Mark-Up
Markup is the price increase that retailers use to make money
Whole sale Retail Markup
Calculating a markup
markup = whole sale price ( percent)
Calculating retail
Retail =whole sale + markup OR retail = (100 + percent)(whole sale)
Calculating the markup percent
119898119886119903119896119906119901 119901119890119903119888119890119899119905 = 119886119898119900119906119899119905 119900119891 119898119886119903119896 119906119901
119908ℎ119900119897119890 119904119886119897119890 119901119903119894119888119890
Do you want a cheese burger
Wegmanrsquos trade McDonaldrsquos trade Five Guys trade
Beef $399lb
$1 quarter pound
Quarter pounder with
Cheese
Little Cheese burger
(slightly bigger than a
quarter pounder 042 lbs) Cheese $299 16 slices
About $019 slice
Bun $269 for 8 buns
About $034 per
bun
$153 $389 $505
ldquoWould you like a drink with thatrdquo
Wegmanrsquos trade McDonaldrsquos trade Five Guys trade
Coke $025can
Sold in a multi
pack
$119 16 oz $249
Bottled
Water
$021bottle
Sold in multi
pack
$139 $201
Module 4 Week 2
9
Example
A store pays $56 for a GPS System The markup is 25 Find the retail price
A store pays $150 for a portable backboard system The markup is 40 What is the
retail price
It costs a fast food restaurant $003 for a fountain soda They sell it for $119 What is the
percent of the markup
Module 4 Week 2
10
Name ____________________________________________ MARKUP HOMEWORK
1 The wholesale price of a karaoke machine is $6225 The markup is 605 find the
retail price
2 A bike has a wholesale price of $270 If the markup is 24
what is the retail price
3 If it costs APPLE copy $8285 to make an 8GB IPod and they sell for $19999 what is the
percent of the markup
4 The retail price of a football jersey is $100 If the wholesale price was $2399 what is
the markup percent
Module 4 Week 2
11
5 A store buys a bracelet for $10 and the markup is 115 What is the retail price
6 A yoga mat is marked up 75 Find the retail price if the wholesale price was $850
7 Using the chart in the notes find the markup between eating a cheeseburger at
home and at McDonaldrsquos
What is the markup between home and Five Guys for a cheese burger
What is the markup between home and Five Guys for a water
Module 4 Week 2
12
SALES TAX
Sales tax is the additional amount of money charged on an item that people buy
Tax = percent x price
The total cost of an item is the price plus the tax
Total cost = price + tax OR Total cost = (100 + percent) x price
Examples
Drew wants to buy exercise equipment
that costs $140 and the sales tax is 575
What is the total cost of the equipment
METHOD 1
Find the sales tax
Add the tax to the price
Tax = percent (price)
Tax = 00575(140)
Tax = 805
Total Cost = price + tax
Total Cost = 140 + 805
Total Cost = $14805
METHOD 2
Add the percent of the tax to 100
(100 of the price + the of tax)
Multiply by the price
100 + 575 = 10575
Total cost = 10575(140)
Total Cost = $14805
What is the total cost of a sweatshirt that costs $42 when the tax is 55
Module 4 Week 2
13
Find the total cost of a $295 notebook with 5 tax
What is the sales tax on a chair priced $17890 when the tax rate is 55
Find the total cost of a $270 bike when the tax rate is 75
Find the tax on a $1500 computer when the tax rate is 8
Module 4 Week 2
14
Name_______________________________________ Tax Homework
Find the tax and total cost for each item
Item Work space Tax Total Cost
Price $120 Tax 6
Price $199 Tax 75
Price $2995 Tax 575
Price $849 Tax 625
Module 4 Week 2
15
Price $1299 Tax 775
Price $8950 Tax 6
Price $469 Tax 85
Price $1599 Tax 75
The Leather Depot buys a coat from the supplier for $90 and marks the price up 40
Molly buys the coat and pays $13482 What percent was the sales tax
Module 4 Week 2
16
TIP or GRATUITY
Tip or Gratuity is a small amount of money in return for a service The total price is the
price of the service plus the tip (and tax if there is any)
Who do I tip
Waiter Waitress
Food Delivery person
Barber Hairdresser
Hotel Maid
Cab driver
Dog groomer
Tow truck driver
Masseuse
Valet Parking
Manicure Technician
Calculating a tip
Tip = price ( percent)
Calculating total cost
Total = price + tip OR Total = (100 + percent)(price)
Example
Jimmy wants to tip 15 on a restaurant bill that is $35 Find the tip and total bill
A haircut cost $20 Sales tax is 55 Is $25 enough to cover the cost with a 15 tip
Scott usually tips 20 when he takes a cab If his commute cost $15 what will the total
cost be
Module 4 Week 2
17
Name ____________________________________________ TIP HOMEWORK
Find the tip for each
BILL Percent of
Gratuity
Tip
$5800 15
$4350 18
$2835
With
625 tax
20
$4200 15
$1300 10
$1750
With 6
tax
20
$12599 18
$7000 15
Timmy takes his dog to the groomer The fee is $75 plus 6 tax Is $90 enough for the
bill and a 15 tip
Page 9
Module 4 Week 2
9
Example
A store pays $56 for a GPS System The markup is 25 Find the retail price
A store pays $150 for a portable backboard system The markup is 40 What is the
retail price
It costs a fast food restaurant $003 for a fountain soda They sell it for $119 What is the
percent of the markup
Module 4 Week 2
10
Name ____________________________________________ MARKUP HOMEWORK
1 The wholesale price of a karaoke machine is $6225 The markup is 605 find the
retail price
2 A bike has a wholesale price of $270 If the markup is 24
what is the retail price
3 If it costs APPLE copy $8285 to make an 8GB IPod and they sell for $19999 what is the
percent of the markup
4 The retail price of a football jersey is $100 If the wholesale price was $2399 what is
the markup percent
Module 4 Week 2
11
5 A store buys a bracelet for $10 and the markup is 115 What is the retail price
6 A yoga mat is marked up 75 Find the retail price if the wholesale price was $850
7 Using the chart in the notes find the markup between eating a cheeseburger at
home and at McDonaldrsquos
What is the markup between home and Five Guys for a cheese burger
What is the markup between home and Five Guys for a water
Module 4 Week 2
12
SALES TAX
Sales tax is the additional amount of money charged on an item that people buy
Tax = percent x price
The total cost of an item is the price plus the tax
Total cost = price + tax OR Total cost = (100 + percent) x price
Examples
Drew wants to buy exercise equipment
that costs $140 and the sales tax is 575
What is the total cost of the equipment
METHOD 1
Find the sales tax
Add the tax to the price
Tax = percent (price)
Tax = 00575(140)
Tax = 805
Total Cost = price + tax
Total Cost = 140 + 805
Total Cost = $14805
METHOD 2
Add the percent of the tax to 100
(100 of the price + the of tax)
Multiply by the price
100 + 575 = 10575
Total cost = 10575(140)
Total Cost = $14805
What is the total cost of a sweatshirt that costs $42 when the tax is 55
Module 4 Week 2
13
Find the total cost of a $295 notebook with 5 tax
What is the sales tax on a chair priced $17890 when the tax rate is 55
Find the total cost of a $270 bike when the tax rate is 75
Find the tax on a $1500 computer when the tax rate is 8
Module 4 Week 2
14
Name_______________________________________ Tax Homework
Find the tax and total cost for each item
Item Work space Tax Total Cost
Price $120 Tax 6
Price $199 Tax 75
Price $2995 Tax 575
Price $849 Tax 625
Module 4 Week 2
15
Price $1299 Tax 775
Price $8950 Tax 6
Price $469 Tax 85
Price $1599 Tax 75
The Leather Depot buys a coat from the supplier for $90 and marks the price up 40
Molly buys the coat and pays $13482 What percent was the sales tax
Module 4 Week 2
16
TIP or GRATUITY
Tip or Gratuity is a small amount of money in return for a service The total price is the
price of the service plus the tip (and tax if there is any)
Who do I tip
Waiter Waitress
Food Delivery person
Barber Hairdresser
Hotel Maid
Cab driver
Dog groomer
Tow truck driver
Masseuse
Valet Parking
Manicure Technician
Calculating a tip
Tip = price ( percent)
Calculating total cost
Total = price + tip OR Total = (100 + percent)(price)
Example
Jimmy wants to tip 15 on a restaurant bill that is $35 Find the tip and total bill
A haircut cost $20 Sales tax is 55 Is $25 enough to cover the cost with a 15 tip
Scott usually tips 20 when he takes a cab If his commute cost $15 what will the total
cost be
Module 4 Week 2
17
Name ____________________________________________ TIP HOMEWORK
Find the tip for each
BILL Percent of
Gratuity
Tip
$5800 15
$4350 18
$2835
With
625 tax
20
$4200 15
$1300 10
$1750
With 6
tax
20
$12599 18
$7000 15
Timmy takes his dog to the groomer The fee is $75 plus 6 tax Is $90 enough for the
bill and a 15 tip
Page 10
Module 4 Week 2
10
Name ____________________________________________ MARKUP HOMEWORK
1 The wholesale price of a karaoke machine is $6225 The markup is 605 find the
retail price
2 A bike has a wholesale price of $270 If the markup is 24
what is the retail price
3 If it costs APPLE copy $8285 to make an 8GB IPod and they sell for $19999 what is the
percent of the markup
4 The retail price of a football jersey is $100 If the wholesale price was $2399 what is
the markup percent
Module 4 Week 2
11
5 A store buys a bracelet for $10 and the markup is 115 What is the retail price
6 A yoga mat is marked up 75 Find the retail price if the wholesale price was $850
7 Using the chart in the notes find the markup between eating a cheeseburger at
home and at McDonaldrsquos
What is the markup between home and Five Guys for a cheese burger
What is the markup between home and Five Guys for a water
Module 4 Week 2
12
SALES TAX
Sales tax is the additional amount of money charged on an item that people buy
Tax = percent x price
The total cost of an item is the price plus the tax
Total cost = price + tax OR Total cost = (100 + percent) x price
Examples
Drew wants to buy exercise equipment
that costs $140 and the sales tax is 575
What is the total cost of the equipment
METHOD 1
Find the sales tax
Add the tax to the price
Tax = percent (price)
Tax = 00575(140)
Tax = 805
Total Cost = price + tax
Total Cost = 140 + 805
Total Cost = $14805
METHOD 2
Add the percent of the tax to 100
(100 of the price + the of tax)
Multiply by the price
100 + 575 = 10575
Total cost = 10575(140)
Total Cost = $14805
What is the total cost of a sweatshirt that costs $42 when the tax is 55
Module 4 Week 2
13
Find the total cost of a $295 notebook with 5 tax
What is the sales tax on a chair priced $17890 when the tax rate is 55
Find the total cost of a $270 bike when the tax rate is 75
Find the tax on a $1500 computer when the tax rate is 8
Module 4 Week 2
14
Name_______________________________________ Tax Homework
Find the tax and total cost for each item
Item Work space Tax Total Cost
Price $120 Tax 6
Price $199 Tax 75
Price $2995 Tax 575
Price $849 Tax 625
Module 4 Week 2
15
Price $1299 Tax 775
Price $8950 Tax 6
Price $469 Tax 85
Price $1599 Tax 75
The Leather Depot buys a coat from the supplier for $90 and marks the price up 40
Molly buys the coat and pays $13482 What percent was the sales tax
Module 4 Week 2
16
TIP or GRATUITY
Tip or Gratuity is a small amount of money in return for a service The total price is the
price of the service plus the tip (and tax if there is any)
Who do I tip
Waiter Waitress
Food Delivery person
Barber Hairdresser
Hotel Maid
Cab driver
Dog groomer
Tow truck driver
Masseuse
Valet Parking
Manicure Technician
Calculating a tip
Tip = price ( percent)
Calculating total cost
Total = price + tip OR Total = (100 + percent)(price)
Example
Jimmy wants to tip 15 on a restaurant bill that is $35 Find the tip and total bill
A haircut cost $20 Sales tax is 55 Is $25 enough to cover the cost with a 15 tip
Scott usually tips 20 when he takes a cab If his commute cost $15 what will the total
cost be
Module 4 Week 2
17
Name ____________________________________________ TIP HOMEWORK
Find the tip for each
BILL Percent of
Gratuity
Tip
$5800 15
$4350 18
$2835
With
625 tax
20
$4200 15
$1300 10
$1750
With 6
tax
20
$12599 18
$7000 15
Timmy takes his dog to the groomer The fee is $75 plus 6 tax Is $90 enough for the
bill and a 15 tip
Page 11
Module 4 Week 2
11
5 A store buys a bracelet for $10 and the markup is 115 What is the retail price
6 A yoga mat is marked up 75 Find the retail price if the wholesale price was $850
7 Using the chart in the notes find the markup between eating a cheeseburger at
home and at McDonaldrsquos
What is the markup between home and Five Guys for a cheese burger
What is the markup between home and Five Guys for a water
Module 4 Week 2
12
SALES TAX
Sales tax is the additional amount of money charged on an item that people buy
Tax = percent x price
The total cost of an item is the price plus the tax
Total cost = price + tax OR Total cost = (100 + percent) x price
Examples
Drew wants to buy exercise equipment
that costs $140 and the sales tax is 575
What is the total cost of the equipment
METHOD 1
Find the sales tax
Add the tax to the price
Tax = percent (price)
Tax = 00575(140)
Tax = 805
Total Cost = price + tax
Total Cost = 140 + 805
Total Cost = $14805
METHOD 2
Add the percent of the tax to 100
(100 of the price + the of tax)
Multiply by the price
100 + 575 = 10575
Total cost = 10575(140)
Total Cost = $14805
What is the total cost of a sweatshirt that costs $42 when the tax is 55
Module 4 Week 2
13
Find the total cost of a $295 notebook with 5 tax
What is the sales tax on a chair priced $17890 when the tax rate is 55
Find the total cost of a $270 bike when the tax rate is 75
Find the tax on a $1500 computer when the tax rate is 8
Module 4 Week 2
14
Name_______________________________________ Tax Homework
Find the tax and total cost for each item
Item Work space Tax Total Cost
Price $120 Tax 6
Price $199 Tax 75
Price $2995 Tax 575
Price $849 Tax 625
Module 4 Week 2
15
Price $1299 Tax 775
Price $8950 Tax 6
Price $469 Tax 85
Price $1599 Tax 75
The Leather Depot buys a coat from the supplier for $90 and marks the price up 40
Molly buys the coat and pays $13482 What percent was the sales tax
Module 4 Week 2
16
TIP or GRATUITY
Tip or Gratuity is a small amount of money in return for a service The total price is the
price of the service plus the tip (and tax if there is any)
Who do I tip
Waiter Waitress
Food Delivery person
Barber Hairdresser
Hotel Maid
Cab driver
Dog groomer
Tow truck driver
Masseuse
Valet Parking
Manicure Technician
Calculating a tip
Tip = price ( percent)
Calculating total cost
Total = price + tip OR Total = (100 + percent)(price)
Example
Jimmy wants to tip 15 on a restaurant bill that is $35 Find the tip and total bill
A haircut cost $20 Sales tax is 55 Is $25 enough to cover the cost with a 15 tip
Scott usually tips 20 when he takes a cab If his commute cost $15 what will the total
cost be
Module 4 Week 2
17
Name ____________________________________________ TIP HOMEWORK
Find the tip for each
BILL Percent of
Gratuity
Tip
$5800 15
$4350 18
$2835
With
625 tax
20
$4200 15
$1300 10
$1750
With 6
tax
20
$12599 18
$7000 15
Timmy takes his dog to the groomer The fee is $75 plus 6 tax Is $90 enough for the
bill and a 15 tip
Page 12
Module 4 Week 2
12
SALES TAX
Sales tax is the additional amount of money charged on an item that people buy
Tax = percent x price
The total cost of an item is the price plus the tax
Total cost = price + tax OR Total cost = (100 + percent) x price
Examples
Drew wants to buy exercise equipment
that costs $140 and the sales tax is 575
What is the total cost of the equipment
METHOD 1
Find the sales tax
Add the tax to the price
Tax = percent (price)
Tax = 00575(140)
Tax = 805
Total Cost = price + tax
Total Cost = 140 + 805
Total Cost = $14805
METHOD 2
Add the percent of the tax to 100
(100 of the price + the of tax)
Multiply by the price
100 + 575 = 10575
Total cost = 10575(140)
Total Cost = $14805
What is the total cost of a sweatshirt that costs $42 when the tax is 55
Module 4 Week 2
13
Find the total cost of a $295 notebook with 5 tax
What is the sales tax on a chair priced $17890 when the tax rate is 55
Find the total cost of a $270 bike when the tax rate is 75
Find the tax on a $1500 computer when the tax rate is 8
Module 4 Week 2
14
Name_______________________________________ Tax Homework
Find the tax and total cost for each item
Item Work space Tax Total Cost
Price $120 Tax 6
Price $199 Tax 75
Price $2995 Tax 575
Price $849 Tax 625
Module 4 Week 2
15
Price $1299 Tax 775
Price $8950 Tax 6
Price $469 Tax 85
Price $1599 Tax 75
The Leather Depot buys a coat from the supplier for $90 and marks the price up 40
Molly buys the coat and pays $13482 What percent was the sales tax
Module 4 Week 2
16
TIP or GRATUITY
Tip or Gratuity is a small amount of money in return for a service The total price is the
price of the service plus the tip (and tax if there is any)
Who do I tip
Waiter Waitress
Food Delivery person
Barber Hairdresser
Hotel Maid
Cab driver
Dog groomer
Tow truck driver
Masseuse
Valet Parking
Manicure Technician
Calculating a tip
Tip = price ( percent)
Calculating total cost
Total = price + tip OR Total = (100 + percent)(price)
Example
Jimmy wants to tip 15 on a restaurant bill that is $35 Find the tip and total bill
A haircut cost $20 Sales tax is 55 Is $25 enough to cover the cost with a 15 tip
Scott usually tips 20 when he takes a cab If his commute cost $15 what will the total
cost be
Module 4 Week 2
17
Name ____________________________________________ TIP HOMEWORK
Find the tip for each
BILL Percent of
Gratuity
Tip
$5800 15
$4350 18
$2835
With
625 tax
20
$4200 15
$1300 10
$1750
With 6
tax
20
$12599 18
$7000 15
Timmy takes his dog to the groomer The fee is $75 plus 6 tax Is $90 enough for the
bill and a 15 tip
Page 13
Module 4 Week 2
13
Find the total cost of a $295 notebook with 5 tax
What is the sales tax on a chair priced $17890 when the tax rate is 55
Find the total cost of a $270 bike when the tax rate is 75
Find the tax on a $1500 computer when the tax rate is 8
Module 4 Week 2
14
Name_______________________________________ Tax Homework
Find the tax and total cost for each item
Item Work space Tax Total Cost
Price $120 Tax 6
Price $199 Tax 75
Price $2995 Tax 575
Price $849 Tax 625
Module 4 Week 2
15
Price $1299 Tax 775
Price $8950 Tax 6
Price $469 Tax 85
Price $1599 Tax 75
The Leather Depot buys a coat from the supplier for $90 and marks the price up 40
Molly buys the coat and pays $13482 What percent was the sales tax
Module 4 Week 2
16
TIP or GRATUITY
Tip or Gratuity is a small amount of money in return for a service The total price is the
price of the service plus the tip (and tax if there is any)
Who do I tip
Waiter Waitress
Food Delivery person
Barber Hairdresser
Hotel Maid
Cab driver
Dog groomer
Tow truck driver
Masseuse
Valet Parking
Manicure Technician
Calculating a tip
Tip = price ( percent)
Calculating total cost
Total = price + tip OR Total = (100 + percent)(price)
Example
Jimmy wants to tip 15 on a restaurant bill that is $35 Find the tip and total bill
A haircut cost $20 Sales tax is 55 Is $25 enough to cover the cost with a 15 tip
Scott usually tips 20 when he takes a cab If his commute cost $15 what will the total
cost be
Module 4 Week 2
17
Name ____________________________________________ TIP HOMEWORK
Find the tip for each
BILL Percent of
Gratuity
Tip
$5800 15
$4350 18
$2835
With
625 tax
20
$4200 15
$1300 10
$1750
With 6
tax
20
$12599 18
$7000 15
Timmy takes his dog to the groomer The fee is $75 plus 6 tax Is $90 enough for the
bill and a 15 tip
Page 14
Module 4 Week 2
14
Name_______________________________________ Tax Homework
Find the tax and total cost for each item
Item Work space Tax Total Cost
Price $120 Tax 6
Price $199 Tax 75
Price $2995 Tax 575
Price $849 Tax 625
Module 4 Week 2
15
Price $1299 Tax 775
Price $8950 Tax 6
Price $469 Tax 85
Price $1599 Tax 75
The Leather Depot buys a coat from the supplier for $90 and marks the price up 40
Molly buys the coat and pays $13482 What percent was the sales tax
Module 4 Week 2
16
TIP or GRATUITY
Tip or Gratuity is a small amount of money in return for a service The total price is the
price of the service plus the tip (and tax if there is any)
Who do I tip
Waiter Waitress
Food Delivery person
Barber Hairdresser
Hotel Maid
Cab driver
Dog groomer
Tow truck driver
Masseuse
Valet Parking
Manicure Technician
Calculating a tip
Tip = price ( percent)
Calculating total cost
Total = price + tip OR Total = (100 + percent)(price)
Example
Jimmy wants to tip 15 on a restaurant bill that is $35 Find the tip and total bill
A haircut cost $20 Sales tax is 55 Is $25 enough to cover the cost with a 15 tip
Scott usually tips 20 when he takes a cab If his commute cost $15 what will the total
cost be
Module 4 Week 2
17
Name ____________________________________________ TIP HOMEWORK
Find the tip for each
BILL Percent of
Gratuity
Tip
$5800 15
$4350 18
$2835
With
625 tax
20
$4200 15
$1300 10
$1750
With 6
tax
20
$12599 18
$7000 15
Timmy takes his dog to the groomer The fee is $75 plus 6 tax Is $90 enough for the
bill and a 15 tip
Page 15
Module 4 Week 2
15
Price $1299 Tax 775
Price $8950 Tax 6
Price $469 Tax 85
Price $1599 Tax 75
The Leather Depot buys a coat from the supplier for $90 and marks the price up 40
Molly buys the coat and pays $13482 What percent was the sales tax
Module 4 Week 2
16
TIP or GRATUITY
Tip or Gratuity is a small amount of money in return for a service The total price is the
price of the service plus the tip (and tax if there is any)
Who do I tip
Waiter Waitress
Food Delivery person
Barber Hairdresser
Hotel Maid
Cab driver
Dog groomer
Tow truck driver
Masseuse
Valet Parking
Manicure Technician
Calculating a tip
Tip = price ( percent)
Calculating total cost
Total = price + tip OR Total = (100 + percent)(price)
Example
Jimmy wants to tip 15 on a restaurant bill that is $35 Find the tip and total bill
A haircut cost $20 Sales tax is 55 Is $25 enough to cover the cost with a 15 tip
Scott usually tips 20 when he takes a cab If his commute cost $15 what will the total
cost be
Module 4 Week 2
17
Name ____________________________________________ TIP HOMEWORK
Find the tip for each
BILL Percent of
Gratuity
Tip
$5800 15
$4350 18
$2835
With
625 tax
20
$4200 15
$1300 10
$1750
With 6
tax
20
$12599 18
$7000 15
Timmy takes his dog to the groomer The fee is $75 plus 6 tax Is $90 enough for the
bill and a 15 tip
Page 16
Module 4 Week 2
16
TIP or GRATUITY
Tip or Gratuity is a small amount of money in return for a service The total price is the
price of the service plus the tip (and tax if there is any)
Who do I tip
Waiter Waitress
Food Delivery person
Barber Hairdresser
Hotel Maid
Cab driver
Dog groomer
Tow truck driver
Masseuse
Valet Parking
Manicure Technician
Calculating a tip
Tip = price ( percent)
Calculating total cost
Total = price + tip OR Total = (100 + percent)(price)
Example
Jimmy wants to tip 15 on a restaurant bill that is $35 Find the tip and total bill
A haircut cost $20 Sales tax is 55 Is $25 enough to cover the cost with a 15 tip
Scott usually tips 20 when he takes a cab If his commute cost $15 what will the total
cost be
Module 4 Week 2
17
Name ____________________________________________ TIP HOMEWORK
Find the tip for each
BILL Percent of
Gratuity
Tip
$5800 15
$4350 18
$2835
With
625 tax
20
$4200 15
$1300 10
$1750
With 6
tax
20
$12599 18
$7000 15
Timmy takes his dog to the groomer The fee is $75 plus 6 tax Is $90 enough for the
bill and a 15 tip
Page 17
Module 4 Week 2
17
Name ____________________________________________ TIP HOMEWORK
Find the tip for each
BILL Percent of
Gratuity
Tip
$5800 15
$4350 18
$2835
With
625 tax
20
$4200 15
$1300 10
$1750
With 6
tax
20
$12599 18
$7000 15
Timmy takes his dog to the groomer The fee is $75 plus 6 tax Is $90 enough for the
bill and a 15 tip
