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26 November, 10:03

imagine you have taken 4 unit test. Thus far, you have scored a 82%,90%,88%, and x%. You know have a test average of a 78%. What did you scored on that fourth test?

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  1. 26 November, 10:49
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    You scored a 52% on the fourth test.

    Step-by-step explanation:

    .78 = (.82+.90+.88+x) / 4

    .78 = (2.6+x) / 4

    3.12=2.6+x

    .52=x
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