Percents Homework SWBAT find the percent of a number 1 . There are 60 animal exhibits at the local zoo. What percent of the xoo’s exhibits does each animal class represent? 2 . York Middle School surveyed 300 students and asked them what their favorite after-school snack was. The circle graph shows the results. a. Determine how many students chose each snack. b. Find the sum of your numbers from part a. Explain the meaning of this answer. 3 . In a recent state Special Olympics meet, Broward County sent a team of 70 players. Twenty percent of the team competed in soccer. How many athletes competed in soccer? 4 . Elena estimates that she spends 30% of her study time on math practice. If she spends an average of 4 hours studying, how much time is spent on math practice? 5 . 6 Is 16% of 40 the same as 40% of 16. Explain your reasoning.
Transcript
Percents Homework
SWBAT find the percent of a number
1.
There are 60 animal exhibits at the local zoo. What percent of the xoo’s exhibits does each animal class represent?
2.
York Middle School surveyed 300 students and asked them what their favorite after-school snack was.The circle graph shows the results.
a. Determine how many students chose each snack.
b. Find the sum of your numbers from part a. Explain the meaning of this answer.
3.
In a recent state Special Olympics meet, Broward County sent a team of 70 players. Twenty percent of the team competed in soccer. How many athletes competed in soccer?
4.
Elena estimates that she spends 30% of her study time on math practice. If she spends an average of 4 hours studying, how much time is spent on math practice?
5.
6.
Is 16% of 40 the same as 40% of 16. Explain your reasoning.
7.
Find 15% of 15% of 15% of 500. How does this compare to finding 45% of 500?
SWBAT find tax, tip, and discount
1. A haircut costs $20. Sales tax is 4.75%. Is $25 sufficient to cover the haircut with tax and a 15% tip?
2. Find the total cost of a spa treatment of $42 including 6% tax and 20% tip.
3. Jaimi went to have a manicure that cost $30. She wanted to tip the technician 20% and tax is 5.75%. How much did she spend total for the manicure?
4. The Leather Depot buys a coat from a supplier for $90 wholesale and marks up the price by 40%. What is the retail price including 7% tax?
5. A DVD normally costs $22. This week it is on sale for 25% off the original price. What is the sale price of the DVD?
6. A shirt is regularly priced at $42. It is on sale for 15% off. What is the sale price of the shirt?
7. A boogie board that has a regular price of $69 is on sale at a 35% discount. What is the sale price with 7% tax?
8. A CD that has a regular price of $15.50 is on sale at a 25% discount. What is the sale price with 6.5% tax?
SWBAT calculate simple interest
SWBAT solve problems using the percent proportion
1. A pair of in-line skates is on sale for $90. If this price represents a 9% discount from the original price, what is the original price to the nearest cent?
2. A cell phone is on sale for 30% off. If the sale price is $239.89, what is the original price?
3. A sweater is regularly $32. It is 25% off the original price this week.a. Would the amount the shopper saved be considered the part, whole, or percent?b. How much would a shopper save by buying the sweater this week?
4. A pair of jeans was 30% off the original price. The sale resulted in a $24 discount.a. Is the original price of the jeans considered the whole, part, or percent?b. What was the original cost of the jeans before the sale?
5. Purchasing a TV that is 20% off will save $180.a. Name the different parts with the words: PART, WHOLE, PERCENT
b. What was the original price of the TV?
6. Mr. Yoshi has 75 papers. He graded 60 papers, and he had a student teacher grade the rest. What percent of the papers did each person grade?
7. Mrs. Bennett has graded 20% of her 150 students’ papers. How many papers does she still need to finish grading?
8. The Sparkling House Cleaning Company has cleaned 28 houses this week. If this number represents 40% of the total number of housed the company is contracted to clean, how many total houses will the company clean by the end of the week?
9.
SWBAT solve problems involving percent change
1. In each pair, the first value is the regular price of an item and the second value is the price with gratuity. Identify the pair that does not belong with the other three. Explain.
2. An online store is having a sale on digital cameras. The tableShows the regular price and the sale price for the cameras.
a. Find the percent decrease for each of the cameras.
