document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=887203>Question 887203</A>: <I><SPAN STYLE=\"word-break: break-all;\"> an executive flew in a jet to a meeting in a city 1200 kilometers away.  After traveling the same amount of time on the return flight , the pilot mentioned that they had 300 kilometers to to.  The air speed of the plane was 900 kilometers per hour.  how fast was the wind blowing assuming that the wind direction was parallel to the flight path and constant all day. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #536445 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39625)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=536445\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> r = ordinary speed of plane<BR>\n" );
document.write( "w = wind speed \r<BR>\n" );
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document.write( "Which Way_______rate_________time________distance<BR>\n" );
document.write( "Going____________r+w__________t___________1200<BR>\n" );
document.write( "Return___________r-w__________t___________1200-300\r<BR>\n" );
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document.write( "You unfortunately did not precisely tell which air speed is meant by \"900 kilometers per hour.\"  Since this was given AFTER you described the slower, return trip, the data table can be adjusted to this:\r<BR>\n" );
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document.write( "Which Way_______rate_________time________distance<BR>\n" );
document.write( "Going____________r+w__________t___________1200<BR>\n" );
document.write( "Return___________900__________t___________1200-300=900\r<BR>\n" );
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document.write( "Now, according to RT=D,  the value for t looks to be 1 hour.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28r%2Bw%29%2A1=1200 ALIGN=MIDDLE  ALT=\"%28r%2Bw%29%2A1=1200\"   DISABLED_style= \"max-width:90%; height:auto;\" > from \"Going\" equation.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r-w=1200 ALIGN=MIDDLE  ALT=\"r-w=1200\"   DISABLED_style= \"max-width:90%; height:auto;\" > kilometers per hour\r<BR>\n" );
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document.write( "What more?  We have this for the data table:<BR>\n" );
document.write( "Which Way_______rate_________time________distance<BR>\n" );
document.write( "Going____________r+w__________1___________1200<BR>\n" );
document.write( "Return___________r-w=900__________1___________900\r<BR>\n" );
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document.write( "The equations being <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%28r%2Bw=1200%29 ALIGN=MIDDLE  ALT=\"highlight_green%28r%2Bw=1200%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%28r-w=900%29 ALIGN=MIDDLE  ALT=\"highlight_green%28r-w=900%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
document.write( "Two equation in the two unknowns, r and w.\r<BR>\n" );
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