SOLUTION: Paul earned scores of 76,78,and 86 on his first three science tests.What score does he need on his fourth test to earn a mean score of 82?
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Question 878180: Paul earned scores of 76,78,and 86 on his first three science tests.What score does he need on his fourth test to earn a mean score of 82? Answer by JulietG(1812) (Show Source):
You can put this solution on YOUR website! 4 tests = 400 points possible
.82 * 400 = 328 needed for an 82 average
He already has 76 + 78+ 86, or 240
Subtract 240 from 328 to get 88.
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Paul needs to study instead of surfing the Internet.
