document.write( "Question 291111: A rectangle is twice as wide as it is long. If the area is 800 square meters, what are the dimensions of the rectangle? \n" ); document.write( "

Algebra.Com's Answer #210597 by brucewill(101) $\"\"$ $\"About$

You can put this solution on YOUR website!
Let x = one side of the rectangle.
\n" ); document.write( "therefore, 2x = other side of the rectangle.
\n" ); document.write( "Area is the product of the 2 sides.\r
\n" ); document.write( "\n" ); document.write( " $\"x%282x%29+=+800\"$
\n" ); document.write( " $\"2x%5E2+=+800\"$
\n" ); document.write( " $\"x%5E2+=+400\"$
\n" ); document.write( " $\"highlight%28x+=+20%29\"$ (disregard the negative answer).\r
\n" ); document.write( "\n" ); document.write( "The second side would be 40.\r
\n" ); document.write( "\n" ); document.write( "To check: 20 * 40 = 800. OK.
\n" ); document.write( " \n" ); document.write( "

\n" );