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28 January, 23:51

Hannah got a perfect score on 3 more spelling quizzes this quarter than last quarter. If she doubles the number of perfect quizzes she had this quarter, she will tie the school record. The record is 3 times the number of spelling quizzes hannah scores perfectly on last quarter.

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  1. 29 January, 00:04
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    First, underline the key numbers

    n=Perfect Quizzes last quarter

    x=School record

    n+3

    3•2=x

    Now we solve that

    3•2=6

    Now we know, x=6

    If the record (6) is 3 times the number of spelling quizzes Hannah scored perfectly last quarter (n), then we know we have to divide the record (6) by 3 to know how many perfect quizzes were from last quarter.

    6/3=2 so, n=2

    The number of perfectly scored quizzes from last quarter is 2.
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