SOLUTION: A piece of cardboard is 25 cm taller than it is wide. It is mounted on a wall so that there is a 5 cm border on all sides. If the area of the border alone is 1350 cm^2, what are th
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Question 1111014: A piece of cardboard is 25 cm taller than it is wide. It is mounted on a wall so that there is a 5 cm border on all sides. If the area of the border alone is 1350 cm^2, what are the dimensions of the cardboard (not including the border)?
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
The Cardboard
Width x
Tall x+25
Area of this carboard
Total area of border plus carboard
Area of JUST THE BORDER
-
------width
-
Height is .
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