math

A recipe that makes 18 cookies calls for 3/4 cup of sugar. How much sugar is needed to make 24 cookies using this recipe?

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  1. One way to solve it is to first change 3/4 to 0.75

    Set up a proportion, cross multiply, and solve for x.

    18/0.75 = 24/x

    18x = 18
    x = 1 cup

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    Ms. Sue
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