Question

according to her running log, kinsley averaged 8 miles per week last month and 6 miles per week this month. by what percent has her average decreased? % submit

Explanation:

Step1: Find the decrease in miles

To find the decrease, we subtract the new average from the old average. The old average was 8 miles per week and the new average is 6 miles per week. So the decrease is \( 8 - 6 = 2 \) miles per week.

Step2: Calculate the percent decrease

The formula for percent decrease is \( \frac{\text{Decrease}}{\text{Original Amount}} \times 100\% \). Here, the decrease is 2 and the original amount (old average) is 8. So we calculate \( \frac{2}{8} \times 100\% \). First, \( \frac{2}{8} = 0.25 \), and then \( 0.25 \times 100\% = 25\% \).

Answer:

25