158k views
2 votes
Vera's final average in seventh grade was 96. In eighth grade, her final average was 91. Find the percent of change in her final average from seventh grade to eighth grade. Thanks :)

2 Answers

3 votes

Answer: To find the percent of change from seventh grade to eighth grade, we can use the formula:

percent change = (new value - old value) / old value * 100%

where "old value" is the value in seventh grade and "new value" is the value in eighth grade.

In this case, the old value is 96 and the new value is 91. Substituting into the formula, we get:

percent change = (91 - 96) / 96 * 100%

Simplifying, we get:

percent change = -5.21%

Therefore, the percent of change in Vera's final average from seventh grade to eighth grade is approximately 5.21% decrease.

Explanation:

User Laudy
by
8.3k points
5 votes

Explanation:

percent change = (new value - old value) / old value x 100%

Where the old value is Vera's final average in seventh grade and the new value is her final average in eighth grade.

percent change = (91 - 96) / 96 x 100%

percent change = -0.052 x 100%

percent change = -5.2%

Therefore, the percent of change in Vera's final average from seventh grade to eighth grade is a decrease of 5.2%.

User Pdross
by
7.0k points