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23 December, 01:08

The perimeter of a rectangle is 90 ft. The ratio of its length to its width is 8 : 7. What are the dimensions of the rectangle? A. 30 ft by 15 ft B. 26 ft by 19 ft C. 24 ft by 21 ft D. 20 ft by 25 ft

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  1. 23 December, 01:10
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    Length = 8x

    Width = 7x

    Perimeter = 2*length + 2*width

    90ft = 2*8x + 2*7x

    90 ft = 16x + 14x

    90ft = 30x

    30x = 90ft

    x = 3ft

    Length = 3*8 = 24ft

    Width = 3*7 = 21ft.

    Thus your Answer is
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