document.write( "Question 696143: a rectangle's width is one third its length, and its perimeter is 80 meters. what is the dimensions of the rectangle? \n" ); document.write( "
Algebra.Com's Answer #428834 by mouk(232)\"\" \"About 
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Let \"+L+\" = length of rectangle\r
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\n" ); document.write( "\n" ); document.write( "\"rectangle's width is one third its length\"
\n" ); document.write( "width = \"+L%2F3+\"\r
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\n" ); document.write( "\n" ); document.write( "\"its perimeter is 80 meters\" : perimeter = 2*(length + width)
\n" ); document.write( "\"+2%28L+%2B+L%2F3%29+=+80+\"
\n" ); document.write( "\"+L+%2B+L%2F3+=+40+\"
\n" ); document.write( "\"+3L%2F3+%2B+L%2F3+=+40+\"
\n" ); document.write( "\"+4L%2F3+=+40+\"
\n" ); document.write( "\"+4L+=+120+\"
\n" ); document.write( "\"+L+=+30+\"\r
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\n" ); document.write( "\n" ); document.write( "\"What is the dimensions of the rectangle?\"
\n" ); document.write( "Length = \"+L+=+30+\"
\n" ); document.write( "Width = \"+L%2F3+=+30%2F3+=+10+\"\r
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\n" ); document.write( "\n" ); document.write( "So, It is 30 x 10
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