Question

A store has issued two different coupons for its customers to use. One coupon gives customers $20 off their purchase price, and the other coupon gives customers 20% off of their purchase. The store allows customers to use both coupons and choose which coupon to apply first. For this context, ignore sales tax. Let f be the function that inputs a cost (in dollars) and outputs the cost after applying the "$20 off" coupon, and let g be the function that inputs a cost (in dollars) and outputs the cost after applying the "20% off" coupon. A customer purchases an item for $130 and asks the cashier to apply the "$20 off" coupon first, followed by the "20% off" coupon. What is the cost of the item after the two coupons are applied?

Answer 1

Answer:

Price= $88

Explanation:

Giving the following information:

One coupon gives customers $20 off their purchase price, and the other coupon gives customers 20% off of their purchase. A customer purchases an item for $130 and asks the cashier to apply the "$20 off" coupon first, followed by the "20% off" coupon.

Price= (130-f)*(1-g)= (130-20)*(1-0.20)= $88