### Home > MC1 > Chapter 5 > Lesson 5.2.1 > Problem5-41

5-41.

Sam's Discount Shoes is having a $40\%$-off sale.

1. Use the percent ruler at right to find how much Lorna will save on her purchase of $80$ professional basketball shoes.

First, you can scale the right side of the percent ruler with increments in dollars.

Because there are $10$ spaces between the values of $0$ and $80$, the scaling increments will be eighty divided by ten. Can you find the increments and complete the scale? This way you can find the dollar equivalent of $40\%$.

1. What will she pay for the shoes?

The discount of $40\%$ means that the dollar amount will be taken away from the total amount. Using your answer from part (a), subtract her discount from the original price to find the amount Lorna will actually pay.

$(\text{Original Price}) − (40\% \text{ Discount}) = \text{New Price}$

Lorna will pay $48$.