document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=122112>Question 122112</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Sorry i didnt know which category to place this word problem in but anyways here's the question that i need help with:\r<BR>\n" );
document.write( "\n" );
document.write( "Two rectangles have the same area, 480 sq. m. The difference in their lengths is 10m. The difference in their widths is 4m. Determine the lengths of their sides.\r<BR>\n" );
document.write( "\n" );
document.write( "Please help me soon because i have an exam tomorrow! Thanks tutors! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #89664 by </B><A HREF=/tutors/aboutme.mpl?userid=scott8148><B>scott8148(6628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=scott8148><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=scott8148><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=89664\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> let x=\"length of longest rectangle\", y=\"width of longest rectangle) __ xy=480 __ y=480/x\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "(x-10)(y+4)=xy __ xy-10y+4x-40=xy __ -10y+4x-40=0\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "substituting __ -10(480/x)+4x-40=0\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "multiplying by x __ -4800+4x^2-40x=0 __ dividing by 4 __ x^2-10x-1200=0\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "factoring __ (x-40)(x+30)=0 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );