Geometry
posted by Chitra .
It takes 69 inches of ribbon to make a bow
and wrap the ribbon around a box, as shown.
The bow takes 30 inches of ribbon. The width
of the box is 11 inches.
What is the height of the box?
Answer in units of inches.

69  30 = 39 inches of ribbon is left for wrapping around. Let w be the width and h be the height.
2w + 2h = 39
You know what w is. Solve for h
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