Problema Solution
Donna redeems a 10% coupon at her local nursery. After buying flowers her checkout price before tax is $217.95. How much would she have paid without the coupon?
Answer provided by our tutors
let
x = the money Donna would have paid without the coupon
x - 0.10x = 217.95
x*0.90 = 217.95
x = 217.95/0.90
x = $242.17
without the coupon Donna would have paid $242.17.