document.write( "Question 218506: The perimeter of a rectangle is 42 inches. The lenth is twice the width. What are the dimensions? What is the area? \n" ); document.write( "
Algebra.Com's Answer #164571 by checkley77(12844)\"\" \"About 
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L=2W
\n" ); document.write( "2L+2W=42
\n" ); document.write( "2*2W+2W=42
\n" ); document.write( "4W+2W=42
\n" ); document.write( "6W=42
\n" ); document.write( "W=42/6
\n" ); document.write( "W=7 IN. FOR THE WIDTH
\n" ); document.write( "L=2*7=14 IN. FOR THE LENGTH.
\n" ); document.write( "PROOF:
\n" ); document.write( "2*14+2*7=42
\n" ); document.write( "28+14=42
\n" ); document.write( "42=42
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