document.write( "Question 104550: The length of a rectangle is 3 feet less than 3 times the width. If the perimeter is 146 feet, what is the length and the width of the rectangle? \n" ); document.write( "
Algebra.Com's Answer #76063 by checkley75(3666)\"\" \"About 
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LENGTH=3W-3
\n" ); document.write( "WIDTH=W
\n" ); document.write( "PERIMETER=2*L+2*W
\n" ); document.write( "146=2(3W-3)+2W
\n" ); document.write( "146=6W-6+2W
\n" ); document.write( "146+6=8W
\n" ); document.write( "152=8W
\n" ); document.write( "W=152/8
\n" ); document.write( "W=19 IS THE WIDTH.
\n" ); document.write( "L=3*19-3
\n" ); document.write( "L=57-3
\n" ); document.write( "L=54 IS THE LENGTH.
\n" ); document.write( "PROOF
\n" ); document.write( "146=2(3*19-3)+2*19)
\n" ); document.write( "146=2(57-3)+38
\n" ); document.write( "146=2*54+38
\n" ); document.write( "146=108+38
\n" ); document.write( "146=146\r
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