Question 901582
A student in an algebra course has test scores of 71, 90, 79, and 83. What score on the next test will raise the student's average to 81?
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Assume 81 is the mean::
71 is below by 9
90 is above by 9
79 is below by 2
83 is above by 2
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The 1st four tests have mean = 81
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Ans:: The student needs an 81 on the next test.
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Cheers,
Stan H.