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The width would be X, and the length 4 X. Since the perimeter of 40 ft is the two lengths, and the 2 ends, that would be X+X+4X+4X= 40 ft, or 10X= 40 ft, simplified by dividing both sides of the = by 10, to get X=4 and 4X=16.

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Q: The perimeter of a sidewalk is 40 feet The length of the sidewalk is four times the width Use a verbal model to find the length and width of the sidewalk?
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