Question

To rent a canoe, you pay $10 up front and $8 per hour. If you have a coupon, you save $1.50 per hour. Expressions A and B show the cost of a canoe rental for h hours when you have a coupon.

Expression A: (10+8h)-1.50h

Expression B: 10+h(8-1.50)

a. Use each expression to calculate the cost of a 3.5-hour rental when using a coupon.

b. How does each expression show a different way to find the cost?

Answer 1

a.) After using the coupon the total comes out to 32.75

b.) It shows a different way buy adding 10 with the number of hours times the price per hour minus the discount.

Explanation:

Expression A: 18x dollars (Before coupon)

Expression B: 18x dollars (Before coupon)

To use the coupon, subtract 1.5 with 8 giving you 7.5 per hour replacing the 8's with 7.5

For example: [A] (10+7.5h)