SOLUTION: a student averages 84 on 5 tests. if the student received grades of 84, 82, 81, and 79 on the first four tests, what grade did the student receive on the fifth exam?

Question 610598: a student averages 84 on 5 tests. if the student received grades of 84, 82, 81, and 79 on the first four tests, what grade did the student receive on the fifth exam?
Answer by Bb(20) (Show Source): You can put this solution on YOUR website!
In order to get an average of 84% on 5 exams you can take this tells you that if you subtract the known averages from 420 it gives you the fifth exam score. The equation looks like this . To test this you can add up all five exam scores and find the average. This will show that 94 on the last exam is correct.
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