Question

Jackson paid $31.50 for a new video game that was on sale 25% off. What was the original price of the video game?

Answer 1

Answer:

42

Step-by-step explanation:

Method 1

100 - 25 = 75            subtract the percent off from 100

31.50 × 100 = 3150   multiply the new price to 100

3150 ÷ 75                  divide the results

$42

Method 2

New price = (1 ± r) original price

r = 25% = 0.25                    percent off

$31.50 = (1 - 0.25)x             subtract

$31.50 = 0.75x                   divide both sides by 0.75

$\frac{31.50}{0.75}=\frac{0.75x}{0.75}$

42