document.write( "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)? \n" ); document.write( "
Algebra.Com's Answer #726005 by josgarithmetic(39617)\"\" \"About 
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The Cardboard
\n" ); document.write( "Width x
\n" ); document.write( "Tall x+25
\n" ); document.write( "Area of this carboard \"x%28x%2B25%29\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Total area of border plus carboard
\n" ); document.write( "\"%28x%2B2%2A5%29%28x%2B25%2B2%2A5%29\"
\n" ); document.write( "\"%28x%2B10%29%28x%2B35%29\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Area of JUST THE BORDER
\n" ); document.write( "\"highlight_green%28%28x%2B10%29%28x%2B35%29-x%28x%2B25%29=1350%29\"\r
\n" ); document.write( "\n" ); document.write( "-\r
\n" ); document.write( "\n" ); document.write( "\"x%5E2%2B45x%2B350-x%5E2-25x=1350\"
\n" ); document.write( "\"45x%2B350-25x=1350\"
\n" ); document.write( "\"20x=1350-350\"
\n" ); document.write( "\"20x=1000\"
\n" ); document.write( "\"2x=100\"
\n" ); document.write( "\"highlight%28x=50%29\"------width
\n" ); document.write( "-
\n" ); document.write( "Height is \"highlight%2875%29\".
\n" ); document.write( "
\n" );