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27 September, 15:19

A rectangle that has an area of 357 square inches is 17 inches wide. Using the formula for area (A=lw), how long is the rectangle? a. 21 inches b. 340 inches c. 20 inches d. 15 inches

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  1. 27 September, 17:42
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    Answer: a. 21 inches

    The rectangle that has an area of 357 square inches (a=357) is 17 inches wide (w=17). You are asked how long the length of the rectangle is. Then, you just need to put the number into the equation provided.

    a=lw

    area = length * width

    357=length * 17

    length = 357/17=21 inches
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