document.write( "Question 212498: the length of a rectangle is twice the width. Find the width if the perimeter is 60 centimeters. Define a variable, and write an equation, and solve. \n" ); document.write( "
Algebra.Com's Answer #160479 by checkley77(12844)\"\" \"About 
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L=2W
\n" ); document.write( "2L+2W=60
\n" ); document.write( "2*2W+2W=60
\n" ); document.write( "4W+2W=60
\n" ); document.write( "6W=60
\n" ); document.write( "W=60/6
\n" ); document.write( "W=10 ANS. FOR THE WIDTH.
\n" ); document.write( "L=2*10=20 ANS. FOR THE LENGTH.
\n" ); document.write( "PROOF:
\n" ); document.write( "2*20+2*10=60
\n" ); document.write( "40+20=60
\n" ); document.write( "60=60
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