SOLUTION: please show me how to do this problem {2L+2w+h=72 { L=3w { h=2w

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Question 17297: please show me how to do this problem {2L+2w+h=72
{ L=3w
{ h=2w
Answer by akmb1215(68) About Me  (Show Source):
You can put this solution on YOUR website!
To solve the problem, you will first need to substitute 3w for L and 2w for h. This will make your equation 2%283w%29%2B2w%2B2w=72. Now, multiply 2 and 3w to make the equation 6w%2B2w%2B2w=72. Then combine like terms to get 10w=72. Solve for w to get w+=+7.2.

To get L, plug 7.2 in for w to make that equation L=3%287.2%29, which makes L=21.6.

To get h, plug 7.2 in for w to make that equation w=2%287.2%29, which makes w=14.4.