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Mathematics 12 Online
OpenStudy (anonymous):

The perimeter of a rectangle is 90 ft. The ratio of the length to the width is 8: 7. What are the dimensions of the rectangle?

OpenStudy (nurali):

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. Hope this helps.

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