Question

Jessica started spending more time on her math homework, and as a result her grade average increased from an 82 to an 88 over a 3-week period. To the nearest tenth of a percent, what was the percent increase in her average grade over in her average grade over the 3-week period?

Answer 1

6.8%.

Explanation:

Given:

Jessica grade average increased from an 82 to an 88 over a 3-week period.

Question asked:

What was the percent increase in her average grade over in her average grade over the 3-week period?

Solution:

Old average grade of Jessica = 82

New average grade of Jessica = 88

To find the percent increase in her average grade, we will use :-

`Percent\ increase=(new\ average\ grade-old\ average\ grade )/(new\ average\ grade) *100`

`=(88-82)/(88) *100=(6)/(88) *100=(600)/(88) =6.81`

Therefore, the percent increase in her average grade over the 3-week period was 6.8%.