document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=686404>Question 686404</A>: <I><SPAN STYLE=\"word-break: break-all;\"> the length of a rectangular is 4 times its width. If the perimeter is 70cm, find the legth and width of the rectangular<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #424762 by </B><A HREF=/tutors/aboutme.mpl?userid=josh_jordan><B>josh_jordan(263)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josh_jordan><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=josh_jordan><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=424762\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> In order to solve this word problem, you will need to know the formula for finding the perimeter of a rectangle:  2L + 2W = P, where L stands for Length, W stands for Width, and P stands for Perimeter.  \r<BR>\n" );
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document.write( "Next, let's look at what the problem gives us:\r<BR>\n" );
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document.write( "Length of Rectangle = 4 times it's width\r<BR>\n" );
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document.write( "In other words, L=4W\r<BR>\n" );
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document.write( "And\r<BR>\n" );
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document.write( "Perimeter = 70\r<BR>\n" );
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document.write( "Now, substitute 4W for L in the formula for finding the perimeter of a rectangle, and substitute 70 for P in that same formula:\r<BR>\n" );
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document.write( "2(4W) + 2W = 70\r<BR>\n" );
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document.write( "Now, multiply 2 by 4W:\r<BR>\n" );
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document.write( "2*4W = 8W\r<BR>\n" );
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document.write( "So, we have \r<BR>\n" );
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document.write( "8W + 2W = 70\r<BR>\n" );
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document.write( "which gives us\r<BR>\n" );
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document.write( "10W = 70\r<BR>\n" );
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document.write( "Now, divide both sides of the equal sign by 10:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=10W%2F10+=+70%2F10 ALIGN=MIDDLE  ALT=\"10W%2F10+=+70%2F10\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "which gives us\r<BR>\n" );
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document.write( "W = 7\r<BR>\n" );
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document.write( "So, we now know the width of the rectangle.  We also know that the length is 4 times the width, so to find the length, just multiply the width by 4:\r<BR>\n" );
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document.write( "7 x 4 = 28\r<BR>\n" );
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document.write( "Therefore, the length of the rectangle is 28cm and the width is 7cm.\r<BR>\n" );
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