document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=324746>Question 324746</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Flying against the wind, an airplane travels 2280km in 3 hours. Flying with the wind, the same plane travels 6100km in 5 hours. What is the rate of the plane in still air and what is the rate of the wind? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #232467 by </B><A HREF=/tutors/aboutme.mpl?userid=Fombitz><B>Fombitz(32388)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Fombitz><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=Fombitz><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=232467\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Rate*Time=Distance<BR>\n" );
document.write( ".<BR>\n" );
document.write( ".<BR>\n" );
document.write( ".<BR>\n" );
document.write( "Let P be the rate of the plane in still air.<BR>\n" );
document.write( "Let W be the rate of the wind.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28P-W%293=2280 ALIGN=MIDDLE  ALT=\"%28P-W%293=2280\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "1.<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=P-W=760 ALIGN=MIDDLE  ALT=\"P-W=760\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ".<BR>\n" );
document.write( ".<BR>\n" );
document.write( ".<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28P%2BW%295=6100 ALIGN=MIDDLE  ALT=\"%28P%2BW%295=6100\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "2.<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=P%2BW=1220 ALIGN=MIDDLE  ALT=\"P%2BW=1220\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ".<BR>\n" );
document.write( ".<BR>\n" );
document.write( ".<BR>\n" );
document.write( "Add eq. 1 and eq. 2 to eliminate W.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2P=1980 ALIGN=MIDDLE  ALT=\"2P=1980\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28P=990%29 ALIGN=MIDDLE  ALT=\"highlight%28P=990%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >kph<BR>\n" );
document.write( "Then from eq. 1,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=990-W=760 ALIGN=MIDDLE  ALT=\"990-W=760\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28W=230%29 ALIGN=MIDDLE  ALT=\"highlight%28W=230%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >kph </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );