Question

Kyle has been keeping his eye on a sound system that costs x dollars. The system goes on sale for 15% off the regular price. Which expression can Kyle use to find the sale price

Answer 1

0.85 x

Explanation:

Let "x" be the original price of the sound system in dollars. First, we have to calculate 15% of x.

15% x = 15/100 . x = 0.15 x

Then we have to subtract this to the original price.

x - 0.15 x

We can take out the common factor "x".

x . (1 - 0.15) = 0.85 x

The final price can be found with the expression 0.85 x