document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=860903>Question 860903</A>: <I><SPAN STYLE=\"word-break: break-all;\"> An airplane flew to San Diego with a tailwind and averaged 485 miles per hour. On the return trip the plane only averaged 275 miles per hour. find the speed of the wind and 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 #518697 by </B><A HREF=/tutors/aboutme.mpl?userid=mananth><B>mananth(16946)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=mananth><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=mananth><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=518697\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x-- speed of plane<BR>\n" );
document.write( "y--- speed of wind\r<BR>\n" );
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document.write( "with tail wind\r<BR>\n" );
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document.write( "speed = x+y= 485\r<BR>\n" );
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document.write( "against wind <BR>\n" );
document.write( "x-y= 275\r<BR>\n" );
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document.write( "solve for x &y\r<BR>\n" );
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document.write( "add the equations\r<BR>\n" );
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document.write( "2x= 760\r<BR>\n" );
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document.write( "x= 380 ----speed of plane\r<BR>\n" );
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document.write( "y=485-380\r<BR>\n" );
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document.write( "y=105 mph </SPAN>\n" );
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