document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=113760>Question 113760</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0395977223/algebrahomeworkh>Algebra Structure and method</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> At noon a private plane left Austin for Los Angeles,2100km away, flying at 500km/h. One hour later a jet left Los Angeles for Austin at 700km/h. At what time did they pass each other?<BR>\n" );
document.write( "Here is what I have so far.I am not sure how to do this<BR>\n" );
document.write( "2100=500(t+60)-700(t-60) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #82767 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=82767\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> At noon a private plane left Austin for Los Angeles,2100km away, flying at 500km/h. One hour later a jet left Los Angeles for Austin at 700km/h. At what time did they pass each other?<BR>\n" );
document.write( "-----------------------------<BR>\n" );
document.write( "Private plane DATA:<BR>\n" );
document.write( "Rate = 500 km/h ; time = x hrs; distance = 500x km<BR>\n" );
document.write( "-----------<BR>\n" );
document.write( "Jet DATA:<BR>\n" );
document.write( "Rate = 700 km/h ; time = x-1 hrs ; distance = 700(x-1)<BR>\n" );
document.write( "--------------<BR>\n" );
document.write( "EQUATION:<BR>\n" );
document.write( "private distance + jet distance = 2100 km<BR>\n" );
document.write( "500x + 700(x-1) = 2100<BR>\n" );
document.write( "5x + 7x-7 = 21<BR>\n" );
document.write( "12x = 28<BR>\n" );
document.write( "x= 7/3 hrs = 2 hrs 20 minutes<BR>\n" );
document.write( "------------<BR>\n" );
document.write( "They passed at noon + 2 hrs 20 min or 2:20 PM<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );