document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=780360>Question 780360</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Suppose two trains leave the station at the same time, traveling in opposite directions. One train travels 10 mph faster than the other. In 3.5 hours, the trains are 322 miles apart. Find the speed of each train. Help! Not sure when to use the d=r*t formula or the t=d/r = aaarrrgghhh!!!!! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #475588 by </B><A HREF=/tutors/aboutme.mpl?userid=MathTherapy><B>MathTherapy(10552)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathTherapy><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=MathTherapy><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=475588\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "Suppose two trains leave the station at the same time, traveling in opposite directions. One train travels 10 mph faster than the other. In 3.5 hours, the trains are 322 miles apart. Find the speed of each train. Help! Not sure when to use the d=r*t formula or the t=d/r = aaarrrgghhh!!!!!\r<BR>\n" );
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document.write( "Let slower train's speed be S\r<BR>\n" );
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document.write( "Then faster train's speed = S + 10\r<BR>\n" );
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document.write( "Create a DISTANCE EQUATION that equates to: <BR>\n" );
document.write( "Distance traveled by slower train, in 3.5 hours, plus distance traveled by faster train, in 3.5 hours, equals total distance between them. In algebraic terms, this is translated as:\r<BR>\n" );
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document.write( "3.5S + 3.5(S + 10) = 322\r<BR>\n" );
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document.write( "3.5S + 3.5S + 35 = 322\r<BR>\n" );
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document.write( "7S = 322 - 35\r<BR>\n" );
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document.write( "7S = 287\r<BR>\n" );
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document.write( "S, or speed of slower train = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=287%2F7 ALIGN=MIDDLE  ALT=\"287%2F7\"   DISABLED_style= \"max-width:90%; height:auto;\" >, or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%2841%29 ALIGN=MIDDLE  ALT=\"highlight_green%2841%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > mph\r<BR>\n" );
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document.write( "Speed of faster train = 41 + 10, or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%2851%29 ALIGN=MIDDLE  ALT=\"highlight_green%2851%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > mph\r<BR>\n" );
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document.write( "You can do the check!! \r<BR>\n" );
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document.write( "Further help is available, online or in-person, for a fee, obviously. Send comments, “thank-yous,” and inquiries to “D” at MathMadEzy@aol.com </SPAN>\n" );
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