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The length of a rectangle is eight more than twice it's width, the perimeter is 96 feet. what are the dimensions of the rectangle?

Respuesta :

texaschic101
P = 2(L + W)
P = 96
L = 2W + 8

96 = 2(2W + 8 + W)
96 = 2(3W + 8)
96 = 6W + 16
96 - 16 = 6W
80 = 6W
80/6 = W
40/3....or 13 1/3 ft <== width

L = 2W + 8
L = 2(40/3) + 8
L = 80/3 + 8
L = 80/3 + 24/3
L = 104/3 or 34 2/3 <== length

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