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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?

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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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?

asked
User Richelle
by
8.1k points

1 Answer

5 votes

Answer:

92

Explanation:

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

340 = 248 + x

x = 340 - 248

x = 92

answered
User Richard Hamilton
by
8.5k points
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