SOLUTION: Maria has a piece of cardboard that is twice as long as it is wide. If she cuts out 2-in squares from each corner and bends up the side to form a box with no top, she will have a b

Algebra ->  Rectangles -> SOLUTION: Maria has a piece of cardboard that is twice as long as it is wide. If she cuts out 2-in squares from each corner and bends up the side to form a box with no top, she will have a b      Log On


   

Question 1005876: Maria has a piece of cardboard that is twice as long as it is wide. If she cuts out 2-in squares from each corner and bends up the side to form a box with no top, she will have a box with a volume of 140cubic inches. Find the dimensions of the piece of cardboard?
Answer by josgarithmetic(39616) About Me  (Show Source):
You can put this solution on YOUR website!


Each red segment is length 2 inches, and the associated square corner would be removed.

Height will be 2 inches;
Base area after folding the flaps up will be %28y-2%2A2%29%282y-2%2A2%29;
Volume specified will be highlight_green%282%28y-4%29%282y-4%29=140%29.

You can finish this. Solve for y.