document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=109162>Question 109162</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0078228948/algebrahomeworkh></A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> Two trains leave from a station at the same time. They travel in opposite directions, one at 62 km/h, the other at 48 km/h. How long will it take before the are 550 km apart? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #79652 by </B><A HREF=/tutors/aboutme.mpl?userid=ptaylor><B>ptaylor(2198)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ptaylor><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=ptaylor><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=79652\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let t=number of hours that elapses 'till the two trains are 550 km apart<BR>\n" );
document.write( "Distance(d)=Rate(r) times Time(t) or d=rt; r=d/t and t=d/r\r<BR>\n" );
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document.write( "The easy way to approach this problem is to recognize that the two trains are separating at the rate of 62 km/h+48 km/h or 110 km/h.  So our equation to solve is:\r<BR>\n" );
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document.write( "550=110t  divide both sides by 110<BR>\n" );
document.write( "t=5 hours\r<BR>\n" );
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document.write( "CK\r<BR>\n" );
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document.write( "5*62+5*48=550<BR>\n" );
document.write( "310+240=550\r<BR>\n" );
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document.write( "550=550\r<BR>\n" );
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document.write( "Hope this helps----ptaylor </SPAN>\n" );
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