SOLUTION: #1. A man built a walk of uniform width around a rectangular pool. If the area of the walk is 315 square feet and the dimensions of the pool are 8 feet by 18 feet, how wide is the
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-> SOLUTION: #1. A man built a walk of uniform width around a rectangular pool. If the area of the walk is 315 square feet and the dimensions of the pool are 8 feet by 18 feet, how wide is the
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Question 831086: #1. A man built a walk of uniform width around a rectangular pool. If the area of the walk is 315 square feet and the dimensions of the pool are 8 feet by 18 feet, how wide is the walk? Answer by richwmiller(17219) (Show Source):
You can put this solution on YOUR website! (8+x)*(18+x)=8*18+315
(x+8) (x+18) = 459
x^2+26 x+144 = 459
x^2+26 x-315 = 0
x = -35 disregard negative answers
x = 9 ft
