Question

Raul wants to buy a new bike from a store having a 10% off sale on

all bikes. The bike he wants has a sale price of $135. Write and solve
an equation to find the original price, b, of the bike.
by

Answer 1

p = $150

Explanation:

Let p represent the original price. Then 10% of that is the discount: 0.10p.

The price after discount is 90% of the original price, or (1.00-0.10)p = 0.90p = $135. We next solve this equation for p: 0.90p = $135, or p = $150.