document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=903644>Question 903644</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The dimensions of a rectangle are such that its length is <BR>\n" );
document.write( "9 <BR>\n" );
document.write( "in. more than its width. If the length were doubled and if the width were decreased by <BR>\n" );
document.write( "4 <BR>\n" );
document.write( "in., the area would be increased by <BR>\n" );
document.write( "168 \r<BR>\n" );
document.write( "\n" );
document.write( "in.2. <BR>\n" );
document.write( "What are the length and width of the rectangle? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #548193 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=548193\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The dimensions of a rectangle are such that its length is<BR>\n" );
document.write( "9in. more than its width. If the length were doubled and if the width were decreased by 4in., the area would be increased by 168 in^2.What are the length and width of the rectangle?<BR>\n" );
document.write( "***<BR>\n" );
document.write( "let x=original width of rectangle<BR>\n" );
document.write( "x+9=original length of rectangle<BR>\n" );
document.write( "2(x+9)=new length of rectangle<BR>\n" );
document.write( "x-4=new width of rectangle<BR>\n" );
document.write( "area=length*width<BR>\n" );
document.write( "..<BR>\n" );
document.write( "2(x+9)(x-4)-x(x+9)=168<BR>\n" );
document.write( "2(x^2+5x-36)-x^2-9x=168<BR>\n" );
document.write( "2x^2+10x-72-x^2-9x=168<BR>\n" );
document.write( "x^2+x-240=0<BR>\n" );
document.write( "(x+16)(x-15)=0<BR>\n" );
document.write( "x=-16 (reject)<BR>\n" );
document.write( "or<BR>\n" );
document.write( "x=15<BR>\n" );
document.write( "x+9=24<BR>\n" );
document.write( "width of rectangle=15 in<BR>\n" );
document.write( "length of rectangle=24 in </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );