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31 March, 15:07

The area of a rectangle is 525 sq cm. the ratio of the length to the width is 7:3. find the length and width.

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  1. 31 March, 17:37
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    Suppose the length is 7x, the width is then 3x

    7x*3x=525

    21x²=525

    x²=25

    x=5

    so the length is 7*5=35, and the width is 3*5=15
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