SOLUTION: The length of a rectangular box is 2 times its width, and its height is 4 in more than its width. The volume of the box is 68 in^3. Find the width of the box. Round your answer to

Question 770595: The length of a rectangular box is 2 times its width, and its height is 4 in more than its width. The volume of the box is 68 in^3. Find the width of the box. Round your answer to two decimal places.
Thank you for your help!
Answer by josgarithmetic(39616) (Show Source): You can put this solution on YOUR website!
Let x, y, z be length, width, height, and use basic fact volume is xyz cubic inches.

Translate the description into symbols, using w as the chief variable.
;

Volume,

You take it from here.
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