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Your grades on four exams are 78, 85, 97, and 92 What grade do you need on the next exam to have an average of 90 on the five exams?

Your grades on four exams are 78, 85, 97, and 92 What grade do you need on the next exam to have an average of 90 on the five exams?
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Your grades on four exams are 78, 85, 97, and 92

What grade do you need on the next exam to have an
average of 90 on the five exams?

User Juve
by
8.1k points

1 Answer

2 votes

Let g = grade needed

(78 + 85 + 92 + 97 + g)/5 = 90

Solve for g.

User Plyto
by
7.6k points
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