SOLUTION: The volume of a rectangular prism is 336 cu inches. The height is 7 cm. The length is 3 times the width. Find the length and width.

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Question 1034647: The volume of a rectangular prism is 336 cu inches. The height is 7 cm. The length is 3 times the width. Find the length and width.
Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
The volume of a rectangular prism is given by
V+=+LWH
Plugging in what we know we have
336+=+%283W%29%28W%29%287%29
16+=+W%5E2
so that
W = 4 inches and that means
L = 12 inches