Question

Mindy's dog Rex weighed 80 pounds a year ago. Now he weighs 92 pounds. What is the percentage increase in Rex's weight?

A) 10%

B) 15%

C) 12.5%

D) 20%

Answer 1

To calculate the percentage increase in Rex's weight from 80 to 92 pounds, find the actual increase of 12 pounds, divide that by the original weight of 80 pounds, and multiply by 100 to get 15%.

Step-by-step explanation:

To find the percentage increase of Rex's weight, we need to follow these steps:

1. Calculate the actual increase in weight by subtracting the initial weight from the final weight: 92 pounds - 80 pounds = 12 pounds.
2. To find the percentage increase, divide the increase by the original weight: 12 pounds ÷ 80 pounds.
3. Convert this to a percentage by multiplying by 100: (12 ÷ 80) × 100 = 15%.

So, the percentage increase in Rex's weight is 15%, which corresponds to option B.