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 602x and 402x respectively.
The height, when the sides are folded, is x.
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