Find the value of the discount by multiplying the original price by the discount rate.
$ 30
Practice makes perfect
The sales price of the racket is the original price minus the discount in dollars.
Original price- Discount= Sales priceLet x be the original price. We can find the value of the discount by multiplying the original price by the discount rate. This means that that 30 % of x is the discount. We are told that the difference between the original price and this discount is $ 21.
Original price_x-Discount_(x * 30 %) =Sales price_($ 21)
Let's solve the resulting equation for x by combining the x- terms and using the Division Property of Equality.
