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26 January, 20:51

A sixth grader weighs 90 pounds, which is 120% of what he weighed in fourth grade. How much did he weigh in fourth grade?

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  1. 26 January, 21:34
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    90=1.2f

    (f stands for how much he weighed in fourth grade)

    (1.2 is 120%, because % stands for divided by 100)

    So, divide by 1.2 on both sides.

    75 pounds.
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