document.write( "Question 686489: The length of a rectangle is twice the width. The perimeter is 36 feet. Find the length and width.\r
\n" ); document.write( "\n" ); document.write( "Unknowns: _____________ = width
\n" ); document.write( " _____________ = length\r
\n" ); document.write( "\n" ); document.write( "Write and equation and solve: (Remember that perimeter is 2l + 2w.)\r
\n" ); document.write( "\n" ); document.write( "Width = _________
\n" ); document.write( "Length = _________\r
\n" ); document.write( "\n" ); document.write( "Please help me with this problem. It was in my book & I don't know how to solve it. The whole book is full of these types of word problems.
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Algebra.Com's Answer #424793 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
The length of a rectangle is twice the width.
\n" ); document.write( "The perimeter is 36 feet. Find the length and width.
\n" ); document.write( "Unknowns:
\n" ); document.write( "______x_______ = width
\n" ); document.write( "______2x_______ = length
\n" ); document.write( "--------------------------------------------
\n" ); document.write( "Write and equation and solve: (Remember that perimeter is 2l + 2w.)
\n" ); document.write( "----
\n" ); document.write( "Perimeter = 2(length + width)
\n" ); document.write( "36 = 2(2x + x)
\n" ); document.write( "18 = 3x
\n" ); document.write( "x = 6
\n" ); document.write( "--------
\n" ); document.write( "Width = x = 6 feet
\n" ); document.write( "------
\n" ); document.write( "Length = 2x = 12 feet
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "================_________
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