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The area of a tabletop is 48 square feet. The length is 3 times the width. If the dimensions are whole numbers, what is the width of the tabletop?

Answer :

length is 3 times the width = 3W

A = L * W
48 = 3W * W
48 = 3W^2
W^2 = 48/3
W^2 = 16
W^2 =4^2
W =4

answer: width is 4ft

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