If the pool's perimeter is 126 meters, what are its dimensions?

Length is 6 meters less than twice its width
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Problem: If the pool's perimeter is 126 meters, what are its dimensions?
Length is 6 meters less than twice its width

L = 2W - 6
P = 2L + 2W
126 = 2(2W - 6) + 2W
126 = 4W - 12 + 2W
126 = 6W - 12
6W - 12 + 12 = 126 + 12
6W = 138
6W/6 = 138/6
W = 23
L = 2W - 6
L = 2(23) - 6
L = 46 - 6
L = 40

Answer: length = 40 meters, width = 23 meters

 

by Level 11 User (78.4k points)

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