Question

At the start of the week, you could complete 12 push-ups. By the end of the week, you could complete 17 push-ups. Which proportion could you use to find the percent increase in the number of push-ups you can complete?

a. 12/100 = 10/x
b. 100/12 = x/10
c. 10/100 = x/12
d. x/100 = 10/12"

Answer 1

To find the percent increase in the number of push-ups you can complete, you can use the proportion: 12/100 = 10/x. Cross-multiply and solve for x to find that the percent increase is approximately 83.33.

Step-by-step explanation:

To find the percent increase in the number of push-ups you can complete, you can use the proportion: 12/100 = 10/x.

1. Cross-multiply to solve for x: 12x = 1000.

2. Divide both sides by 12: x = 83.33.

Therefore, the correct proportion to calculate the percent increase is option a. 12/100 = 10/x.