document.write( "Question 330824: The area of a rectangle is 20. The length is 3 less than the twice the width. Find the length and width. \n" ); document.write( "

Algebra.Com's Answer #237160 by Fombitz(32388) $\"\"$ $\"About$

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The area of a rectangle is,
\n" ); document.write( " $\"A=L%2AW=20\"$
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( " $\"L=2W-3\"$
\n" ); document.write( "Substituting,
\n" ); document.write( " $\"%282W-3%29W=20\"$
\n" ); document.write( " $\"2W%5E2-3W-20=0\"$
\n" ); document.write( " $\"%282W%2B5%29%28W-4%29=0\"$
\n" ); document.write( "Only positive W makes sense in this problem.
\n" ); document.write( " $\"W-4=0\"$
\n" ); document.write( " $\"highlight%28W=4%29\"$
\n" ); document.write( "Then
\n" ); document.write( " $\"L=2%284%29-3\"$
\n" ); document.write( " $\"highlight%28L=5%29\"$
\n" ); document.write( " \n" ); document.write( "

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