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The perimeter of a rectangle is 30 inches. The length is 3 more than the width. What is the length and width of the rectangle?

Perimeter = P

Width = W

Length = L

​P = 2W + 2L

​P = 2W + 2(W+3)        (length is 3 more than width)

P = 4W + 6

​30 = 4W + 6          (Perimeter is 30 inches)

4W = 24

W = 6, L = 9

by Level 11 User (80.8k points)
Length is width+3. 2(width+width+3)=30, the perimeter.

2*width+3=15, so width=6”. The length is 9”.
by Top Rated User (679k points)

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