document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=875014>Question 875014</A>: <I><SPAN STYLE=\"word-break: break-all;\"> For spring break, a group of students<BR>\n" );
document.write( "flew to Cancun. From Mexico City, the airplane took 2 hr<BR>\n" );
document.write( "to fly 600 mi against a head wind. The return trip with the wind took 1 2/3 hr. Find the speed of the plane in still air. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #527963 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><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=527963\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> For spring break, a group of students<BR>\n" );
document.write( "flew to Cancun. From Mexico City, the airplane took 2 hr<BR>\n" );
document.write( "to fly 600 mi against a head wind. The return trip with the wind took 1 2/3 hr. Find the speed of the plane in still air.<BR>\n" );
document.write( "***<BR>\n" );
document.write( "let x=speed of plane in still air<BR>\n" );
document.write( "let c=speed of wind<BR>\n" );
document.write( "(x+c) speed of plane with the wind<BR>\n" );
document.write( "(x-c) speed of plane against the wind<BR>\n" );
document.write( "travel time=distance/speed<BR>\n" );
document.write( "..<BR>\n" );
document.write( "1 2/3 hr=5/3 hr<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=600%2F%28x-c%29=2 ALIGN=MIDDLE  ALT=\"600%2F%28x-c%29=2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=600%2F%28x%2Bc%29=5%2F3 ALIGN=MIDDLE  ALT=\"600%2F%28x%2Bc%29=5%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "..<BR>\n" );
document.write( "2x-2c=600<BR>\n" );
document.write( "5x+5c=1800<BR>\n" );
document.write( "..<BR>\n" );
document.write( "10x-10c=3000<BR>\n" );
document.write( "10x+10c=3600<BR>\n" );
document.write( "add<BR>\n" );
document.write( "20x=6600<BR>\n" );
document.write( "x=330<BR>\n" );
document.write( "speed of plane in still air=330 mph </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );