document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=624573>Question 624573</A>: <I><SPAN STYLE=\"word-break: break-all;\"> My teacher just started doing this with me can someone help me out. \r<BR>\n" );
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document.write( "A rectangle has an area of 240 {cm}^2 and a perimeter of 64 cm. What are its dimensions?  Need to find the length and the with  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #392860 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><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=392860\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A rectangle has an area of 240 {cm}^2 and a perimeter of 64 cm. What are its dimensions? Need to find the length and the width<BR>\n" );
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document.write( "let x=length<BR>\n" );
document.write( "let y=width<BR>\n" );
document.write( "Area of a rectangle=length*width=xy<BR>\n" );
document.write( "Perimeter=twice the length+twice the width=2x+2y<BR>\n" );
document.write( "64=2x+2y<BR>\n" );
document.write( "32=x+y<BR>\n" );
document.write( "y=32-x<BR>\n" );
document.write( "..<BR>\n" );
document.write( "240=x*y=x(32-x)=32x-x^2<BR>\n" );
document.write( "x^2-32x+240=0<BR>\n" );
document.write( "(x-12)(x-20)=0<BR>\n" );
document.write( "x=12(reject, x=length)<BR>\n" );
document.write( "or<BR>\n" );
document.write( "x=20<BR>\n" );
document.write( "32-x=12<BR>\n" );
document.write( "Dimensions of rectangle:<BR>\n" );
document.write( "length=20 cm<BR>\n" );
document.write( "width=12 cm<BR>\n" );
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