Question

1. sonyas heart rate was 76 beats per minute. she ran a mile on her treadmill and checked her heart rate again. this time, her heart rate was 133 beats per minute. what was the percent increase in sonyas heart rate?

Explanation:

Step1: Find the increase in heart rate

Subtract the original heart rate from the new heart rate. So, \( 133 - 76 = 57 \) beats per minute.

Step2: Calculate the percent increase

Use the formula for percent increase: \( \text{Percent Increase} = \frac{\text{Increase}}{\text{Original}} \times 100\% \). Substitute the values: \( \frac{57}{76} \times 100\% \). First, simplify \( \frac{57}{76} = 0.75 \), then multiply by 100% to get \( 0.75 \times 100\% = 75\% \).

Answer:

The percent increase in Sonya's heart rate is \( 75\% \).