document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1026491>Question 1026491</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Smith was traveling X miles to Boston at M miles per hour and arrived 2 hours late for the party. How fast should he have traveled to have arrived on time? ---\r<BR>\n" );
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document.write( "I got xm/x/m-2, which I know is wrong. An explanation of how to do this problem correctly would be greatly appreciated. Thanks!\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #641735 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=641735\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The distance is x miles\r<BR>\n" );
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document.write( "the speed is M mph<BR>\n" );
document.write( "the time it took is miles/miles per hour, and that is x/M<BR>\n" );
document.write( "The speed he needed was two hours less than that, or (x/M)-2, or (x-2M)/M.  Those units are mph<BR>\n" );
document.write( "The distance is unchanged, and its units are miles.<BR>\n" );
document.write( "The speed needed is xM/(x-2M).ANSWER<BR>\n" );
document.write( "Try an example.<BR>\n" );
document.write( "480 miles, and he drove at 60 mph, taking 8 hours.  He needed to get there in 6 hours, so he needed to drive 80 mph.<BR>\n" );
document.write( "Use the speed he went, 60 mph<BR>\n" );
document.write( "480*60/(480-120)=480*60/360<BR>\n" );
document.write( "This is (1/6)*480=80 mph<BR>\n" );
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