document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=649316>Question 649316</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 1.	Two trains leave a city, traveling in opposite directions. One train is 20 mph faster than the second. After 5 hours the trains are 800 miles apart. What is the speed of each train? can u tell me the formula to solve this.. and how to do it without distance.. been trying for hours and I have a final tommorow!! </SPAN>\n" );
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document.write( "1.	Two trains leave a city, traveling in opposite directions. One train is 20 mph faster than the second. After 5 hours the trains are 800 miles apart. What is the speed of each train? can u tell me the formula to solve this.. and how to do it without distance.. been trying for hours and I have a final tommorow!!\r<BR>\n" );
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document.write( "Let the speed of the slower train be S<BR>\n" );
document.write( "Then the speed of the faster train = S + 20\r<BR>\n" );
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document.write( "Distance traveled by slower train, plus distance traveled by faster train = distance apart, OR\r<BR>\n" );
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document.write( "5S + 5(S + 20) = 800\r<BR>\n" );
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document.write( "5S + 5S + 100 = 800\r<BR>\n" );
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document.write( "10S = 800 - 100\r<BR>\n" );
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document.write( "10S = 700\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=700%2F10 ALIGN=MIDDLE  ALT=\"700%2F10\"   DISABLED_style= \"max-width:90%; height:auto;\" >, or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%2870%29 ALIGN=MIDDLE  ALT=\"highlight_green%2870%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > mph\r<BR>\n" );
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document.write( "Speed of faster train = 70 + 20, or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%2890%29 ALIGN=MIDDLE  ALT=\"highlight_green%2890%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > mph\r<BR>\n" );
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document.write( "OR\r<BR>\n" );
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document.write( "Time * sum of speeds = distance apart\r<BR>\n" );
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document.write( "5(S + S + 20) = 800\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2S+%2B+20+=+800%2F5 ALIGN=MIDDLE  ALT=\"2S+%2B+20+=+800%2F5\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "2S + 20 = 160\r<BR>\n" );
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document.write( "2S = 140 ----- S = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=140%2F2 ALIGN=MIDDLE  ALT=\"140%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" >, or 70 mph (slower)<BR>\n" );
document.write( "70 + 20, or 90 mph (faster)\r<BR>\n" );
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document.write( "Send comments and “thank-yous” to “D” at MathMadEzy@aol.com  </SPAN>\n" );
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