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26 September, 23:53

The length of the rectangle is 10cm less than 4 times the width. If the perimeter is 1.3m, find the dimensions of the rectangle.

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  1. 27 September, 02:24
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    Express your length and width as algebraic expressions:

    width = x

    length = 4x

    Use the formula for the perimeter of a rectangle to solve for x:

    perimeter = 2 (length) + 2 (width)

    50 = 2 (4x) + 2 (x)

    50 = 8x + 2x

    50 = 10x

    5 = x

    The width (x) is 5 feet and the length (4x) is 20 feet.
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