document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=922036>Question 922036</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A plane has a cruising speed of 150 miles per hour when there is no wind. At this speed, a plane flew 300 miles with the wind in the same amount of time it flew 200 miles against the wind. 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 #559480 by </B><A HREF=/tutors/aboutme.mpl?userid=KMST><B>KMST(5328)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=KMST><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=KMST><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=559480\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> With a wind speed of <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x ALIGN=MIDDLE  ALT=\"x\"   DISABLED_style= \"max-width:90%; height:auto;\" > miles per hour,<BR>\n" );
document.write( "a plane with a cruising speed of 150 miles per hour<BR>\n" );
document.write( "travels with the wind at a speed of <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=150%2Bx ALIGN=MIDDLE  ALT=\"150%2Bx\"   DISABLED_style= \"max-width:90%; height:auto;\" > miles per hour with respect to the ground,<BR>\n" );
document.write( "while against the wind it travels at a speed of <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=150-x ALIGN=MIDDLE  ALT=\"150-x\"   DISABLED_style= \"max-width:90%; height:auto;\" > miles per hour with respect to the ground.\r<BR>\n" );
document.write( "\n" );
document.write( "In a period of time of <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t ALIGN=MIDDLE  ALT=\"t\"   DISABLED_style= \"max-width:90%; height:auto;\" > hours, the plane will flew<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%28150%2Bx%29=300 ALIGN=MIDDLE  ALT=\"t%28150%2Bx%29=300\"   DISABLED_style= \"max-width:90%; height:auto;\" > miles with the wind, and<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%28150-x%29=200 ALIGN=MIDDLE  ALT=\"t%28150-x%29=200\"   DISABLED_style= \"max-width:90%; height:auto;\" > miles against the wind.<BR>\n" );
document.write( "So,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%28150%2Bx%29%2F%28t%28150-x%29%29=300%2F200 ALIGN=MIDDLE  ALT=\"t%28150%2Bx%29%2F%28t%28150-x%29%29=300%2F200\"   DISABLED_style= \"max-width:90%; height:auto;\" >---><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28150%2Bx%29%2F%28150-x%29=3%2F2 ALIGN=MIDDLE  ALT=\"%28150%2Bx%29%2F%28150-x%29=3%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" >---><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%28150%2Bx%29=3%28150-x%29 ALIGN=MIDDLE  ALT=\"2%28150%2Bx%29=3%28150-x%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >---><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=300%2B2x=450-3x%29 ALIGN=MIDDLE  ALT=\"300%2B2x=450-3x%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >---><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2x%2B3x=450-300%29 ALIGN=MIDDLE  ALT=\"2x%2B3x=450-300%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >---><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5x=150%29 ALIGN=MIDDLE  ALT=\"5x=150%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >---><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=150%2F5%29 ALIGN=MIDDLE  ALT=\"x=150%2F5%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >---><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28x=30%29 ALIGN=MIDDLE  ALT=\"highlight%28x=30%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "The speed of the wind was 30 miles per hour. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );