Posted by **Kate** on Tuesday, July 26, 2011 at 12:28pm.

A piece of cardboard has a length of 60cm and a width of 40cm. In order to make the cardboard into an open box, a box with no lid), a piece of length x must be cut out of each corner.

Write an equation to represent each dimension of the box.

- Math -
**MathMate**, Sunday, July 31, 2011 at 6:33pm
From each side, the cut at each end is x, so the length and width left is 60-2x and 40-2x respectively.

The height, when the sides are folded, is x.

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