document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=88349>Question 88349</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0321127099/algebrahomeworkh>Intermediate Algebra Graph and models</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> The A train goes 12mph slower than the E train.  The A train travels 230 mi in the same time that the E train travels 290 mil.  Find the speed of each train.\r<BR>\n" );
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document.write( "I am lost in how to set up the equation to be able to solve to find the speed of each train.\r<BR>\n" );
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document.write( "Thank you </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #64163 by </B><A HREF=/tutors/aboutme.mpl?userid=rossiv53><B>rossiv53(27)</B></A><img src=\"/images/stars/stars-07.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rossiv53><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=64163\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Use formula for time <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=time=distance%2Frate ALIGN=MIDDLE  ALT=\"time=distance%2Frate\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Since each train travels for the same time, we'll set them equal to each other.<BR>\n" );
document.write( "rate for E train = x<BR>\n" );
document.write( "rate for A train = (x-12) since it travels 12mph slower.<BR>\n" );
document.write( "your equation<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=230%2F%28x-12%29=290%2Fx ALIGN=MIDDLE  ALT=\"230%2F%28x-12%29=290%2Fx\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "cross multiply<BR>\n" );
document.write( "230x=290(x-12)<BR>\n" );
document.write( "230x=-290x-3480<BR>\n" );
document.write( "-60x=-3480<BR>\n" );
document.write( "x=58\r<BR>\n" );
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document.write( "So, rate for E train is 58mph and since the A train is 12mph slower, its rate is 46mph.\r<BR>\n" );
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document.write( "Good luck! </SPAN>\n" );
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