document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=353518>Question 353518</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a plane flying with the wind flew 460 miles in 2 hours. flying against the same wind, the same plane flew 340 miles in 2 hours. find the speed 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 #252590 by </B><A HREF=/tutors/aboutme.mpl?userid=robertb><B>robertb(5830)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=robertb><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=robertb><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=252590\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let P = speed of the plane, and W = speed of the wind.<BR>\n" );
document.write( "Using the formula <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d+=+r%2At ALIGN=MIDDLE  ALT=\"d+=+r%2At\"   DISABLED_style= \"max-width:90%; height:auto;\" >, or distance  = speed x time, we get <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%2A%28P+%2B+W%29+=+460 ALIGN=MIDDLE  ALT=\"2%2A%28P+%2B+W%29+=+460\"   DISABLED_style= \"max-width:90%; height:auto;\" >, and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%2A%28P+-+W%29+=+340 ALIGN=MIDDLE  ALT=\"2%2A%28P+-+W%29+=+340\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
document.write( "These are the same as <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=P%2B+W+=+230 ALIGN=MIDDLE  ALT=\"P%2B+W+=+230\"   DISABLED_style= \"max-width:90%; height:auto;\" > and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=P+-+W+=+170 ALIGN=MIDDLE  ALT=\"P+-+W+=+170\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
document.write( "Adding corresponding sides, we get <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2P+=+400 ALIGN=MIDDLE  ALT=\"2P+=+400\"   DISABLED_style= \"max-width:90%; height:auto;\" >, or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=P+=+200 ALIGN=MIDDLE  ALT=\"P+=+200\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
document.write( "Thus the speed of the wind is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=W+=+230+-+200+=+30 ALIGN=MIDDLE  ALT=\"W+=+230+-+200+=+30\"   DISABLED_style= \"max-width:90%; height:auto;\" > miles per hour. </SPAN>\n" );
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