SOLUTION: On four exams Bobs grades were 79, 93, 91, and 68. What grade must he obtain on his fifth exam to have an average of 80?
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Question 822779: On four exams Bobs grades were 79, 93, 91, and 68. What grade must he obtain on his fifth exam to have an average of 80? Found 2 solutions by oscargut, rfer:Answer by oscargut(2103) (Show Source):
You can put this solution on YOUR website! we need to find x where
(79+93+91+68+x)/5 = 80
331+x = 400
x = 69
Answer 69
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