document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=562081>Question 562081</A>: <I><SPAN STYLE=\"word-break: break-all;\"> please help me solve this problem.\r<BR>\n" );
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document.write( "manuel traveled 4 hours non stop to mexico a total of 166 mles. he took a train part of the way which averaged 50 mph, and then took a bus the remaining distance, which avereged 30 mph. how long was manuel on the train? </SPAN>\n" );
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document.write( "let x=miles Manuel was on the train<BR>\n" );
document.write( "166-x=miles Manuel was on the bus<BR>\n" );
document.write( "travel time=distance/speed<BR>\n" );
document.write( "x/50+(166-x)/30=4<BR>\n" );
document.write( "LCD=50*30<BR>\n" );
document.write( "30x+50(166-x)=4*50*30<BR>\n" );
document.write( "30x+8300-50x=6000<BR>\n" );
document.write( "20x=2300<BR>\n" );
document.write( "x=115 miles<BR>\n" );
document.write( "Travel time=distance/speed<BR>\n" );
document.write( "115/50=2.3 hrs<BR>\n" );
document.write( "ans:<BR>\n" );
document.write( "Manuel was on the train for 2.3 hrs </SPAN>\n" );
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