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25 July, 16:38

Dana took a 20-question test and scored 85% how many problems did she answer incorrectly

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  1. 25 July, 17:05
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    85/100 = x/20

    100x = 1700

    x = 17 questions she answered correctly

    x + 17 = 20

    x = 3 questions she answered incorrectly
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