SOLUTION: caleb's final exam was given 5 times the weight of a weekly test. the average of 15 weekly tests was 91. the overall weighted averagee was 85. what did caleb make on the final?
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Question 907796: caleb's final exam was given 5 times the weight of a weekly test. the average of 15 weekly tests was 91. the overall weighted averagee was 85. what did caleb make on the final?
You can put this solution on YOUR website! caleb's final exam was given 5 times the weight of a weekly test. the average of 15 weekly tests was 91. the overall weighted averagee was 85. what did caleb make on the final?
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Total pts. from 15 weekly test = 15*91
Total pts. from final (which counts as 5 tests) = 5x
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Equation:
average = (total points)/(15+5)
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85 = (15*91+5x)/20
1700 = 1365 + 5x
5x = 335
x = 67 (His score on the final exam)
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Cheers,
Stan H.
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