document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=938275>Question 938275</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Ok so I have homework and my teacher didn't help me much to understand it. I have tried setting up ratios and all that but here is the question:<BR>\n" );
document.write( "The Shanghai Maglev Train is one of the fastest trains in the world, traveling about 2,144 miles in 8 hours. The distance between Columbus, Ohio, and New York City is about 560 miles. How many hours would it take the train to travel between cities?\r<BR>\n" );
document.write( "\n" );
document.write( "I am very stuck, at first I think I got it, but then I doubt myself knowing that isn't how I will solve this problem. Please help. Thanks! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #571558 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39618)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=571558\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Simple uniform rates, travel problem.<BR>\n" );
document.write( "RT=D rate time distance.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=R=%282144%2Amiles%29%2F%288%2Ahours%29 ALIGN=MIDDLE  ALT=\"R=%282144%2Amiles%29%2F%288%2Ahours%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=D=560%2Amiles ALIGN=MIDDLE  ALT=\"D=560%2Amiles\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=T=unknownHOURS ALIGN=MIDDLE  ALT=\"T=unknownHOURS\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "SOLVE FOR T.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "You can try to use simple ratio if you want.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "The travel rate is the same for the entire trip.<BR>\n" );
document.write( "That means D for distance, T for time, the ration <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=D%2FT ALIGN=MIDDLE  ALT=\"D%2FT\"   DISABLED_style= \"max-width:90%; height:auto;\" > is a constant.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=560%2FT=2144%2F8 ALIGN=MIDDLE  ALT=\"560%2FT=2144%2F8\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "and if two \"fractions\" are equal then their reciprocals are also equal.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=T%2F560=8%2F2144 ALIGN=MIDDLE  ALT=\"T%2F560=8%2F2144\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Note that the left and right sides still must be equal.<BR>\n" );
document.write( "You can undo the division by  560 on the left by MULTIPLYING both sides of the equation by 560:\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28T%2F560%29%2A560=%288%2F2144%29%2A560 ALIGN=MIDDLE  ALT=\"%28T%2F560%29%2A560=%288%2F2144%29%2A560\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28T%2A560%29%2F560=%288%2A560%29%2F2144 ALIGN=MIDDLE  ALT=\"%28T%2A560%29%2F560=%288%2A560%29%2F2144\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=T=%288%2A560%29%2F2144 ALIGN=MIDDLE  ALT=\"T=%288%2A560%29%2F2144\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Now just simplify the right side and compute as needed. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );