document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=450741>Question 450741</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Two cars leave an intersection at the same time. One drives east while the other drives south at 10 miles per hour faster than the other. After 2 hours, the cars are 100 miles apart. How fast is the southbound car traveling? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #310245 by </B><A HREF=/tutors/aboutme.mpl?userid=rwm><B>rwm(914)</B></A><img src=\"/images/stars/stars-11.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rwm><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=310245\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> We are dealing with a right triangle here and the 100 miles is the hypotenuse.<BR>\n" );
document.write( "(e*2)^2+((e+10)*(2))^2=100^2\r<BR>\n" );
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document.write( "8x^2+80x+400 = 10000<BR>\n" );
document.write( "8 x^2+80 x-9600 = 0<BR>\n" );
document.write( "e=-40<BR>\n" );
document.write( "e=30 mph<BR>\n" );
document.write( "south is 30+10=40 mph<BR>\n" );
document.write( "we disregard negative answers since we can't have a negative speed.<BR>\n" );
document.write( "  </SPAN>\n" );
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