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Algebra II

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If Peter received grades of 88,83,75,and 80 on four tests in English, what is the minimum grade he has to score on the fifth test to have an average of at least 85 for the course?

  • Algebra II -

    85=(88+83+75+80+x)/5
    85(5)=88+83+75+80+x
    425-326=x
    99=x

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