document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=905302>Question 905302</A>: <I><SPAN STYLE=\"word-break: break-all;\"> manuel traveled 7 hours nonstop to mexico, a total of 232 miles. he took a train part of the way, which averaged 40 mph, and then took a bus the remaining distance, which averaged 30 mph. how long was manuel on the train? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #549137 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=549137\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> manuel traveled 7 hours nonstop to mexico, a total of 232 miles. he took a train part of the way, which averaged 40 mph, and then took a bus the remaining distance, which averaged 30 mph. how long was manuel on the train?\r<BR>\n" );
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document.write( "Average =232/7 = 33.11\r<BR>\n" );
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document.write( "Let him travel x miles by bus\r<BR>\n" );
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document.write( "x/30 +(232-x)/40 = 7\r<BR>\n" );
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document.write( "multiply equation by 120<BR>\n" );
document.write( "4x+3(232-x) = 120*7\r<BR>\n" );
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document.write( "4x+696-3x=840\r<BR>\n" );
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document.write( "x=840-696\r<BR>\n" );
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document.write( "x=144\r<BR>\n" );
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document.write( "144/30\r<BR>\n" );
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document.write( "=4.8 on bus\r<BR>\n" );
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document.write( "2.2 hours on train </SPAN>\n" );
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