SOLUTION: Marty found that he had an averege of 81 for his four math tests . He forgot to average in a grade of 76. Whats his true average?
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Question 892206: Marty found that he had an averege of 81 for his four math tests . He forgot to average in a grade of 76. Whats his true average?
Answer by rfer(16322) (Show Source): You can put this solution on YOUR website!
(81*4+76)/5=80
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