document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=843445>Question 843445</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The length of a rectangle is 8cm more than four times the width. If the perimeter of the rectangle is 56cm what are the dimensions? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #508093 by </B><A HREF=/tutors/aboutme.mpl?userid=TheInstructor><B>TheInstructor(29)</B></A><img src=\"/images/stars/stars-07.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=TheInstructor><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=508093\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Maybe I should create a lesson on this, nevertheless:\r<BR>\n" );
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document.write( "Let's break it down. Okay so your length is 8cm more than width. How can we re-write this into the form of an equation?\r<BR>\n" );
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document.write( "Let your x = Width<BR>\n" );
document.write( "Simply put: L = 4x + 8\r<BR>\n" );
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document.write( "Okay your perimeter is given as 56cm. Now we know that Perimeter = 2Length + 2Width right (2L+2W)?\r<BR>\n" );
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document.write( "So: 2(4x+8)+ 2(x) = 56<BR>\n" );
document.write( "Therefore: 8x+16 + 2x = 56<BR>\n" );
document.write( "10x + 16 = 56<BR>\n" );
document.write( "10x = 40\r<BR>\n" );
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document.write( "SO YOUR X IS THEN EQUAL TO 4CM. Now remember your length is 4x+8. So sub your x=4, into the length equation to give you a dimension of 24cm.\r<BR>\n" );
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document.write( "So as a result;<BR>\n" );
document.write( "Length: 24cm<BR>\n" );
document.write( "Width: 4cm\r<BR>\n" );
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document.write( "If you want to check it sub your dimensions into the 2L+2W formula; which should give you an answer of 56.\r<BR>\n" );
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document.write( "Hope that helped! :) </SPAN>\n" );
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