document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=164453>Question 164453</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 2.	An express and local train leave Gray’s Lake at 3 P.M. and head for Chicago 50 miles away. The express travels twice as fast as the local, and arrives 1 hour ahead of it. Find the speed of each train. \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 #121179 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=121179\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> An express and local train leave Gray’s Lake at 3 P.M. and head for Chicago 50<BR>\n" );
document.write( " miles away. The express travels twice as fast as the local, and arrives 1 hour<BR>\n" );
document.write( " ahead of it. Find the speed of each train.<BR>\n" );
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document.write( "Let s = local train speed<BR>\n" );
document.write( "then<BR>\n" );
document.write( "2s = express train speed<BR>\n" );
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document.write( "Write a time equation: Time = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=dist%2Fspeed ALIGN=MIDDLE  ALT=\"dist%2Fspeed\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "Freight time = Express time + 1 hr<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=50%2Fs ALIGN=MIDDLE  ALT=\"50%2Fs\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=50%2F%282s%29 ALIGN=MIDDLE  ALT=\"50%2F%282s%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > + 1<BR>\n" );
document.write( "Multiply equation by 2s to get rid of the denominators<BR>\n" );
document.write( "2(50) = 50 + 2s<BR>\n" );
document.write( "100 - 50 = 2s<BR>\n" );
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document.write( "s = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=50%2F2 ALIGN=MIDDLE  ALT=\"50%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "s = 25 mph is the freight speed, obviously 50 mph is the express speed<BR>\n" );
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document.write( "Check solution by find the time of each<BR>\n" );
document.write( "50/25 = 2 hr<BR>\n" );
document.write( "50/50 = 1 hr, (1 hr less than the freight </SPAN>\n" );
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