document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=560195>Question 560195</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The local train is 25 miles down the track from central station when the express leaves the station. The local train travels at a rate of 50 mi/hr and the express travels at a rate of 80 mi/hr. Let N represent the number of hours since the express train left Central Station.\r<BR>\n" );
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document.write( "Question 1.) Write at expression that represents the express train's distance from Central Station in N hours.\r<BR>\n" );
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document.write( "Question 2.) When will the express train catch up with the local train? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #363849 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=363849\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The local train is 25 miles down the track from central station when the express leaves the station.<BR>\n" );
document.write( " The local train travels at a rate of 50 mi/hr and the express travels at a rate of 80 mi/hr.<BR>\n" );
document.write( " Let N represent the number of hours since the express train left Central Station.<BR>\n" );
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document.write( "Question 1.) Write at expression that represents the express train's distance from Central Station in N hours.<BR>\n" );
document.write( "80n<BR>\n" );
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document.write( "Question 2.) When will the express train catch up with the local train?<BR>\n" );
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document.write( "When the express catches up with the local, they will have traveled the same distance<BR>\n" );
document.write( "write a distance equation: dist = = speed * time<BR>\n" );
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document.write( "80n = 50(n + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=50%2F25 ALIGN=MIDDLE  ALT=\"50%2F25\"   DISABLED_style= \"max-width:90%; height:auto;\" >) <BR>\n" );
document.write( "80n = 50(n+.5)<BR>\n" );
document.write( "80n = 50n + 25<BR>\n" );
document.write( "80n - 50n = 25<BR>\n" );
document.write( "30n = 25<BR>\n" );
document.write( "n = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=25%2F30 ALIGN=MIDDLE  ALT=\"25%2F30\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "n = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5%2F6 ALIGN=MIDDLE  ALT=\"5%2F6\"   DISABLED_style= \"max-width:90%; height:auto;\" > hr or 50 minutes to catch up with the local<BR>\n" );
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document.write( "Confirm this by finding the actual distances, they should be the same:<BR>\n" );
document.write( "Local took half hr longer; 8/6 hrs<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5%2F6 ALIGN=MIDDLE  ALT=\"5%2F6\"   DISABLED_style= \"max-width:90%; height:auto;\" >*80 = 66.67 mi<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=8%2F6 ALIGN=MIDDLE  ALT=\"8%2F6\"   DISABLED_style= \"max-width:90%; height:auto;\" >*50 = 66,67 mi<BR>\n" );
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