document.write( "Question 549988: A peice of wire is 42 com long and is bent into the shape of a rectangle who width is twice its length. Find the dimensions of the recanhle. \n" ); document.write( "
Algebra.Com's Answer #358313 by TutorDelphia(193)\"\" \"About 
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The 42cm will become the rectangle's perimeter. \r
\n" ); document.write( "\n" ); document.write( "Our relevant formulas is
\n" ); document.write( "P=2L+2W (perimeter equals 2 times the length and 2 times the width)\r
\n" ); document.write( "\n" ); document.write( "We also know
\n" ); document.write( "W=2L
\n" ); document.write( "We can use that to sub in\r
\n" ); document.write( "\n" ); document.write( "P=2L+2(2L)\r
\n" ); document.write( "\n" ); document.write( "P=6L\r
\n" ); document.write( "\n" ); document.write( "42=6L
\n" ); document.write( "L=7\r
\n" ); document.write( "\n" ); document.write( "W=2L
\n" ); document.write( "W=2(7)
\n" ); document.write( "W=14\r
\n" ); document.write( "\n" ); document.write( "And to check 2*14+2*7=42
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