document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1167702>Question 1167702</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A car and a bus set out at 6 P.M. from the same point headed in the same direction. The average speed of the car is twice the average speed of the bus. In 2 h, the car is 68 mi ahead of the bus. Find the rate of the car. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #792301 by </B><A HREF=/tutors/aboutme.mpl?userid=Theo><B>Theo(13342)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Theo><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=Theo><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=792301\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> r * t = d<BR>\n" );
document.write( "r = rate<BR>\n" );
document.write( "t = time<BR>\n" );
document.write( "d = distance.\r<BR>\n" );
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document.write( "if r = rate of the bus, then 2r = rate of the car.<BR>\n" );
document.write( "if x is the distance that the bus travels, then x + 68 is the distance the car traveled.\r<BR>\n" );
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document.write( "when time = 2, you get:\r<BR>\n" );
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document.write( "2r * 2 = x + 68 for the car.<BR>\n" );
document.write( "r * 2 = x for the bus.\r<BR>\n" );
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document.write( "simplify to get:\r<BR>\n" );
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document.write( "4r = x + 68 for the car.<BR>\n" );
document.write( "2r = x for the bus.\r<BR>\n" );
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document.write( "subtract the second equation from the first to get:\r<BR>\n" );
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document.write( "2r = 68\r<BR>\n" );
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document.write( "solve for r to get:\r<BR>\n" );
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document.write( "r = 35\r<BR>\n" );
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document.write( "the rate of the bus = 34 miles per hour.<BR>\n" );
document.write( "the rate of the car = 68 miles per hour.\r<BR>\n" );
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document.write( "in 2 hours, the car travels 68 * 2 = 136 miles.<BR>\n" );
document.write( "in 2 hours, the bus travels 34 * 2 = 68 miles.\r<BR>\n" );
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document.write( "the car travels 68 miles more than the bus in the same time.\r<BR>\n" );
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document.write( "your solution is the rate of the car = 68 miles per hour.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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