A student received grades of 75, 90, and 83 on three math tests. What grade does the student need on the fourth test to have an average test score of at least 85?

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asked Feb 17, 2021 90.9k views

3 votes

A student received grades of 75, 90, and 83 on three math tests. What grade does the student need on the fourth test to have an average test score of at least 85?

Mathematics
high-school

Richelle asked

by Richelle

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1 Answer

5 votes

Answer:

Explanation:

85(4) = 75 + 90 + 83 + x

340 = 248 + x

x = 340 - 248

x = 92

Richard Hamilton answered Feb 23, 2021

by Richard Hamilton

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