Problema Solution
Frank scored 82, 84, 59, and 87 on his previous tests. what score does he need on his next test so that his average (mean) is 80?
Answer provided by our tutors
Let 'x' represent Frank's score on his next test.
(82 + 84 + 59 + 87 + x)/5 = 80
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click here to see the equation solved for x
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x = 88
Frank needs a score of 88 on his next test.