SOLUTION: Mr. D's average of 4 weekly quizzes was 84. What grade should he get on the 5th quiz so he can raise his average to 86?
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Question 886495: Mr. D's average of 4 weekly quizzes was 84. What grade should he get on the 5th quiz so he can raise his average to 86? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! Mr. D's average of 4 weekly quizzes was 84. What grade should he get on the 5th quiz so he can raise his average to 86?
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Let the 5th score be "x":::
Equation:
Average of 5 = average of t
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(4*84+x)/5 = 86
4*84 + x = 430
x = 430-336
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x = 94
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Cheers,
Stan H.
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