Question

Bill found a book he wanted on sale for $20.80. The original price of the book was $32. Find the discount rate.

Answer 1

35% discount

Explanation:

We can first find what percent of 32 20.80 is.

This can be shown by using a percent proportion.

`(20.80)/(32) = (x)/(100)`

We can cross multiply to find the value of
`x`.

`20.80\cdot100=2080\\\\2080/ 32 = 65`

So 20.80 is 65% of 32.

However, this is the percent of the original price. To find the discount, we have to subtract 65 from 100.

`100 - 65 = 35`

So the book was on a 35% discount.

Hope this helped!