document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=934100>Question 934100</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Two cars leave town A at the same time and travel 480 miles (each) to town B. The speed of the slower car is 20 mph less than the speed of the faster one. If the slower car arrives at Town B two hours after the faster car, the what is the speed ( in mph) of the faster car? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #567211 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=567211\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Car I	speed	x															<BR>\n" );
document.write( "Car II	speed	x	+	-20													<BR>\n" );
document.write( "																	<BR>\n" );
document.write( "	Distance = same		480	miles	1												<BR>\n" );
document.write( "	Car II time - Car I time = 2 hours	<BR>\n" );
document.write( "	t=d/t																<BR>\n" );
document.write( "																	<BR>\n" );
document.write( "	480	/	x	-	480	/	(	x	+	-20	)	=	2.00				<BR>\n" );
document.write( "	LCD=	x	(	x	+	-20	)										<BR>\n" );
document.write( "	multiply by LCD																<BR>\n" );
document.write( "	480	(	x	+	-20	)	-	480	x	=	2	x	(	x	+	-20	)<BR>\n" );
document.write( "	480	x	+	-9600	-	480	x	=	2	X^2	+	-40	x				<BR>\n" );
document.write( "	-9600	=	2	X^2	+	-40	x										<BR>\n" );
document.write( "	2	X^2	-40	x	-	9600	=	0							<BR>\n" );
document.write( "/2<BR>\n" );
document.write( "x^2-20x-4800=0\r<BR>\n" );
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document.write( "x^2-20x+100= 4800+100\r<BR>\n" );
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document.write( "(x-10)^2= 4900\r<BR>\n" );
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document.write( "x-10 = 70  ( taking positive)\r<BR>\n" );
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document.write( "x= 80\r<BR>\n" );
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document.write( "Car I ------80 mph<BR>\n" );
document.write( "Car II-------60 mph\r<BR>\n" );
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document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );