SOLUTION: A student averages 84 on five tests. If the student received grades of 84, 82, 81, and 79 on the first four exams, what grade did the student receive on the fifth exam?

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Question 322722: A student averages 84 on five tests. If the student received grades of 84, 82, 81, and 79 on the first four exams, what grade did the student receive on the fifth exam?
Answer by QH(50) About Me  (Show Source):
You can put this solution on YOUR website!
add all the test scores to x(the unknown score) divided by total tests (5) = 84
%2884%2B82%2B81%2B79%2Bx%29%2F5=84
%28326%2Bx%29%2F5=841
%28%28326%2Bx%29%2F5%29%2A%285%2F1%29=84%2A%285%2F1%29
326%2Bx=420
x=94