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)![]() ![]() You can put this solution on YOUR website! 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 \n" ); document.write( " \n" ); document.write( " |