document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=626530>Question 626530</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a small airplane traveled 170 mph with a tailwind and 130 with a headwind. find the speed of the wind and of the airplane 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 #394321 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=394321\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a small airplane traveled 170 mph with a tailwind and 130 with a headwind. find the speed of the wind and of the airplane 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 tailwind=170<BR>\n" );
document.write( "x-c=speed of plane with headwind=130<BR>\n" );
document.write( "x+c=170<BR>\n" );
document.write( "x-c=130<BR>\n" );
document.write( "add<BR>\n" );
document.write( "2x=300<BR>\n" );
document.write( "x=150<BR>\n" );
document.write( "c=170-x=20<BR>\n" );
document.write( "speed of plane in still air=150 mph<BR>\n" );
document.write( "speed of wind=20 mph </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );