document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=316286>Question 316286</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If the length of a rectangle is four times it's width and the area is 256ft squared then what is the perimeter? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #226204 by </B><A HREF=/tutors/aboutme.mpl?userid=Shogun><B>Shogun(3)</B></A><img src=\"/images/stars/iconNewId_16x16.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Shogun><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=226204\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> First things first: Let's jot down everything we know about the problem, to make it easier. \r<BR>\n" );
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document.write( "Area of a Rectange: Length * Width\r<BR>\n" );
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document.write( "Perimeter of a Rectangle: 2*Length + 2*Width\r<BR>\n" );
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document.write( "Now we know that the LENGTH of the rectangle is 4 TIMES its WIDTH.\r<BR>\n" );
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document.write( "So let's call the width \"W\". Then we can say that the length is 4W (since length is 4 times the width). \r<BR>\n" );
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document.write( "Now that we know both length and width, we can make a formula (from our area equation).\r<BR>\n" );
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document.write( "256 = 4W * W.  <--- All we did here is substitute numbers back into the equation.\r<BR>\n" );
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document.write( "We can simplify that to get:\r<BR>\n" );
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document.write( "256 = 4W^2\r<BR>\n" );
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document.write( "64 = W^2\r<BR>\n" );
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document.write( "8 = W\r<BR>\n" );
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document.write( "So now we know that the width is 8 from our formula. That means we also know that the length is 32 (4 times the width, which is 8).\r<BR>\n" );
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document.write( "The final step is to find the perimeter, which we know is 2*Length + 2*Width.\r<BR>\n" );
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document.write( "2*32 + 2*8 = 64 + 16 = 80.\r<BR>\n" );
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document.write( "So we know that the perimeter is 80 ft. \r<BR>\n" );
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document.write( " </SPAN>\n" );
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