document.write( "Question 286483: A rectangle is twice as long as it is wide. its perimeter is 48cm find its dimension. \n" ); document.write( "
Algebra.Com's Answer #207776 by texttutoring(324)\"\" \"About 
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Let l = length, w=width\r
\n" ); document.write( "\n" ); document.write( "l=2w (because the length is twice as long as the width)\r
\n" ); document.write( "\n" ); document.write( "The perimeter can be expressed by:\r
\n" ); document.write( "\n" ); document.write( "P=2w+2l\r
\n" ); document.write( "\n" ); document.write( "Substitute P=48 and l=2w into the equation:\r
\n" ); document.write( "\n" ); document.write( "48 = 2w + 2(2w)
\n" ); document.write( "48 = 2w + 4w
\n" ); document.write( "48 = 6w
\n" ); document.write( "w=8\r
\n" ); document.write( "\n" ); document.write( "The width is 8cm and the length is 16cm.
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