document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=673665>Question 673665</A>: <I><SPAN STYLE=\"word-break: break-all;\"> the length of a rectangular is 3 times its width.it perimeter is 84m.find the length of the rectangular. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #418775 by </B><A HREF=/tutors/aboutme.mpl?userid=rm29924><B>rm29924(97)</B></A><img src=\"/images/stars/stars-08.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rm29924><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=rm29924><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=418775\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> the formula to find the perimeter of a rectangle is perimeter = 2(length)+2(width)\r<BR>\n" );
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document.write( "let width = w<BR>\n" );
document.write( "the length is 3 times the width  therefore length = 3w\r<BR>\n" );
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document.write( "the perimeter is 84m\r<BR>\n" );
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document.write( "84=2(3w)+2w<BR>\n" );
document.write( "84=6w+2w<BR>\n" );
document.write( "84=8w<BR>\n" );
document.write( "divide both sides by 8 to get w by itself<BR>\n" );
document.write( "10.5=w\r<BR>\n" );
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document.write( "the length is 3w so 3(10.5)<BR>\n" );
document.write( "answer: the length is 31.5 m\r<BR>\n" );
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document.write( "check answer:<BR>\n" );
document.write( "84=2(3w)+2w<BR>\n" );
document.write( "84=2(3x10.5)+2(10.5)<BR>\n" );
document.write( "84=2(31.5)+21<BR>\n" );
document.write( "84=63+21<BR>\n" );
document.write( "84=84 </SPAN>\n" );
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