document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=436902>Question 436902</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A loaded moving truck is traveling 35 mph faster than a freight train. In the time it takes the train to travel 90 miles the truck travels 160 miles. What is the speed of the truck? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #302248 by </B><A HREF=/tutors/aboutme.mpl?userid=htmentor><B>htmentor(1343)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=htmentor><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=htmentor><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=302248\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let s = the speed of the truck<BR>\n" );
document.write( "Then s - 35 = the speed of the train<BR>\n" );
document.write( "The time required for the train to travel 90 miles:<BR>\n" );
document.write( "t = 90/(s-35)<BR>\n" );
document.write( "This is the same time that the truck travels 160 miles:<BR>\n" );
document.write( "t = 160/s<BR>\n" );
document.write( "Equating the two times gives:<BR>\n" );
document.write( "90/(s-35) = 160/s<BR>\n" );
document.write( "To make the math simpler, divide both sides by 10:<BR>\n" );
document.write( "9/(s-35) = 16/s<BR>\n" );
document.write( "Cross-multiply, solve for s:<BR>\n" );
document.write( "9s = 16s - 560 -> 7s = 560 -> s = 80<BR>\n" );
document.write( "So the speed of the truck is 80 mph (and I think the driver's going to get a speeding ticket!) </SPAN>\n" );
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