Question

Or

find the percentage.According to her running log, Nancy averaged 5 miles per week last month and 6 miles per week this month. By what percent has her average increased?

Answer 1

Nancy's average weekly mileage has increased by 20%.

To find the percentage increase in Nancy's average weekly mileage, we can use the following formula:

`[ \text{Percentage increase} = \frac{\text{New average} - \text{Old average}}{\text{Old average}} * 100% ]`

Given that Nancy averaged 5 miles per week last month and 6 miles per week this month, we can substitute these values into the formula:

`[ \text{Percentage increase} = (6 - 5)/(5) * 100% ]`

`[ \text{Percentage increase} = (1)/(5) * 100% ]`

`[ \text{Percentage increase} = 20% ]`

Therefore, Nancy's average weekly mileage has increased by 20%.