document.write( "Question 193334: The length of a rectangle is equal to three times its width. If the perimeter is equal to 240 feet, what is the length of the recatngle? Ican only get L(3w)= 240 \n" ); document.write( "
Algebra.Com's Answer #145149 by RAY100(1637)\"\" \"About 
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Perimeter of rectangle is 2*length+2*width
\n" ); document.write( "but l=3w
\n" ); document.write( "p=2l+2w=2(3w)+2w=8w,,,but given =240
\n" ); document.write( "therefore w=240/8, =30\r
\n" ); document.write( "\n" ); document.write( "and l=3w=3*30=90
\n" ); document.write( "check
\n" ); document.write( "Per=2(30)+2(90)=60+180=240,,,,ok
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