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March 28, 2017

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A student earned scores of 85, 83, 90, 94, 88 and 84 on the first six tests in a biology class. What score is needed on the seventh test to produce an 86 average?

  • Math - ,

    (85+83+90+94+88+84+x)/7 = 86

  • Math - ,

    Do I add them together, have the answer and then divide by 7 ?

  • Math - ,

    ok here
    (524+x)/7 = 86
    524+x = 602
    x = 78

  • Math - ,

    Thank you.

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