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12 August, 09:35

The length and width of a rectanlge are in the ratio 5:3. The perimeter of the rectanlge is 32 cm. What is the length and width?

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  1. 12 August, 09:55
    0
    Set up a system:

    x/y=5/3

    2x+2y=32

    Solve:

    y=5/3x

    2x+2 (5/3x) = 32

    2x+10/3x=32

    16/3x=32

    x=6

    Substitute 6 back in:

    y=5/3 (6) = 10

    The length is 10cm, the width is 6cm
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