Question 861150
Erika has received scores of 82,87,93,95,88, and 90 on math quizzes. What score must Erika get on her next quiz to have an average of 90? 
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Let her next quiz score be "x"::
Solve for "x"::
[82 + 87 + 93 + 95 + 88 + 90 + x]/7 = 90
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(535+x) = 630
x = 95
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Cheers,
Stan H.
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