Question

A pair of Levi 501 Jeans go on sale from $50 to $45. What is the percent decrease?

Answer 1

The jeans are discounted at `10%` off.

Explanation:

$45 is what percent of $50

`$45 = n%($50)`

`($45)/($50) = (n%cancel($50))/(cancel($50))`

`.90 = n%`

`90% = n`

Since the original price of $50 represents the 100% price
and $45 represents 90% of that price the discount is

`100% - 90% = 10%`

The jeans are discounted at 10% off.