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Question 756606:  A large plywood box has a volume of 240 ft3. Its length is 16 ft greater than its height, and its width is 1 ft less than its height. What are the dimensions of the box?
 
Find the Length, Height, width. 
 Answer by stanbon(75887)      (Show Source): 
You can  put this solution on YOUR website! A large plywood box has a volume of 240 ft3. Its length is 16 ft greater than its height, and its width is 1 ft less than its height. What are the dimensions of the box?  
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Equations: 
L = H+16 
W = H-1 
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Volume = L*W*H = 240 ft^3 
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(H+16)(H-1)(H) = 240 
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H^3 + 15H^2 - 16H - 240 = 0 
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H = 4 ft 
L = H+16 = 20 ft 
W = H-1 = 3 ft 
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Cheers, 
Stan H. 
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