The perimeter of a rectangle is 90 ft. Find the dimensions of the rectangle if the ratio of the length to the width is 8: 7. What would be the best equation to use to solve this problem?
let the constant be x
so, length = 8x and width = 7xso, perimeter = 2(length+ width)90=2 (8x+7x)45 = 15xx = 45/15 = 3length = 8x = 24 ftwidth = 7x = 21 ft
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