Post on 27-Mar-2015
transcript
Example 1 Translate Sentences into Equations
Example 2 Translate Sentences into Equations
Example 3 Translate Sentences into Equations
Example 4 Translate and Solve an Equation
Example 5 Write and Solve a Two-Stop Equation
Translate three more than half a number is 15 into an equation.
Answer:
Translate five more than one-third a number is 7 into an equation.
Answer:
Translate nineteen is two more than five times a number into an equation.
Answer:
Translate fifteen is three more than six times a number into an equation.
Answer:
Translate eight less than twice a number is –35 into an equation.
Answer:
Translate six less than three times a number is –22 into an equation.
Answer:
Two more than of a number is 6. Find the number.
Two more than of a number is 6.Words
Variable
Equation
Answer: The number is 12.
Simplify.
Mentally multiply each side by 3.
Subtract 2 from each side.
Write the equation.
Three more than six times a number is 15. Find the number.
Answer: 2
TRANSPORTATION A taxi ride costs $3.50 plus $2 for each mile traveled. If Jan pays $11.50 for the ride, how many miles did she travel?Her cost starts at $3.50 and adds $2 until it reaches $11.50. Organize the data for the first few miles into a table and look for a pattern.
2
1
0
CostMiles
3
Write an equation to represent the situation. Let m represent the number of miles.
3.50 + 2m 11.50
flat rate plus
m miles at $2 per mile equals $11.50
Simplify.
Write the equation.
Subtract 3.50 from each side.
Answer: Jan traveled 4 miles.
Divide each side by 2.
Simplify.
TRANSPORTATION A rental car costs $100 plus $0.25 for each mile traveled. If Kaya pays $162.50 for the car, how many miles did she travel?
Answer: 250 miles