document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=460600>Question 460600</A>: <I><SPAN STYLE=\"word-break: break-all;\"> an airplane flew for 5 hr with a 20-km/h tailwind and returned in 7 hr against the same wind. find 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 #315923 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=315923\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 5*(x+20)=7*(x-20)<BR>\n" );
document.write( "5x+100=7x-140<BR>\n" );
document.write( "240=2x<BR>\n" );
document.write( "120=x<BR>\n" );
document.write( "120 mph in still air<BR>\n" );
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document.write( "</TD></TR></TABLE>\n" );