# college math

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the perimeter of a rectangular traffic sign is 120 inches Also, its length is 6 inches longer than its width

• college math -

L = Length

W = Width

P = Perimeter

L = W + 6

P = 2 L + 2 W = 2 ( L + W )

120 = 2 ( W + 6 + W )

120 = 2 ( 2 W + 6 )

120 = 4 w + 12 Subract 12 to both sides

120 - 12 = 4 W

108 = 4 W Divide both sides by 4

27 = W

W = 27 in

L = W + 6

L = 27 + 6

L = 33 in

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