document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=202676>Question 202676</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Tom took a trip of 1,020 miles.  He traveled by train at 55mph and the same number of hours by plane at 285mph.  How many hours did the trip take?\r<BR>\n" );
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document.write( "I tried T=d/r  1020/55=18.545      1020/285=5.18   18.545+5.18=23.73 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #152860 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=152860\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Tom took a trip of 1,020 miles. He traveled by train at 55mph and the same number of hours by plane at 285mph. How many hours did the trip take? <BR>\n" );
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document.write( "Train DATA:<BR>\n" );
document.write( "distance = x miles ; rate = 55 mph ; time = x/55 hrs<BR>\n" );
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document.write( "Plane DATA:<BR>\n" );
document.write( "distance = 1020-x miles ; rate = 285 mph ; time = (1020-x)/285 hrs<BR>\n" );
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document.write( "Equation:<BR>\n" );
document.write( "train time = plane time<BR>\n" );
document.write( "x/55 = (1020-x)/285<BR>\n" );
document.write( "Cross-multiply to get:<BR>\n" );
document.write( "285x = 55(1020-x)<BR>\n" );
document.write( "285x = 55*1020 - 55x<BR>\n" );
document.write( "340x = 55*1020<BR>\n" );
document.write( "x = 165 miles<BR>\n" );
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document.write( "train time = 165/55 = 3 hrs<BR>\n" );
document.write( "plane time = (1020-165)/285 = 3 hrs<BR>\n" );
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document.write( "Total time = 6 hrs.<BR>\n" );
document.write( "=============================================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );