document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=910337>Question 910337</A>: <I><SPAN STYLE=\"word-break: break-all;\"> An airplane makes a trip in 3.2 hours flying against the wind. The same airplane makes the trip in 3 hours flying with the wind. If the wind is moving at 7 mph, what is the speed of the plane? Please show how you solved the problem as well. Thanks! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #552412 by </B><A HREF=/tutors/aboutme.mpl?userid=richwmiller><B>richwmiller(17219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richwmiller><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=richwmiller><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=552412\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> r*t=d<BR>\n" );
document.write( "with the wind<BR>\n" );
document.write( "(r+7)*3=d<BR>\n" );
document.write( "3*r+21=d<BR>\n" );
document.write( "against the wind<BR>\n" );
document.write( "(r-7)*3.2=d<BR>\n" );
document.write( "3.2*r-7*3.2=d<BR>\n" );
document.write( "3.2*r-22.4=d\r<BR>\n" );
document.write( "\n" );
document.write( "3.2*r-22.4=3*r+21<BR>\n" );
document.write( "0.2r=43.4/0.2<BR>\n" );
document.write( "r=217.0 mph rate plane<BR>\n" );
document.write( "distance=224.0*3=672.0<BR>\n" );
document.write( "distance=210.0*3.2=672.0<BR>\n" );
document.write( "check<BR>\n" );
document.write( "(217.0+7)*3= (217.0-7)*3.2<BR>\n" );
document.write( "224.0*3=210.0*3.2<BR>\n" );
document.write( "672.0=672.0<BR>\n" );
document.write( "ok<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );