document.write( "Question 321046: A rectangle is 3 times as long as it is wide. The perimeter is 60 cm. Find the dimensions of the rectangle. Round to the nearest tenth if necessary. \n" ); document.write( "
Algebra.Com's Answer #229974 by mananth(16946)\"\" \"About 
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let width be x
\n" ); document.write( "length =3x
\n" ); document.write( "..
\n" ); document.write( "Perimeter = 2L+2W
\n" ); document.write( "2x+2*3x= 60
\n" ); document.write( "2x+6x=60
\n" ); document.write( "8x=60
\n" ); document.write( "x=7.5 cm
\n" ); document.write( "y= 3x = 3*7.5
\n" ); document.write( "=22.5
\n" ); document.write( "dimensions are 22.5 by 7.5 cm
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