document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1001294>Question 1001294</A>: <I><SPAN STYLE=\"word-break: break-all;\"> It took a boat 2 hours to rich town A going upstream. The way back was one hour and 20 minutes. What is the speed of the boat in still water if the speed of the stream is 3mph? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #618542 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=618542\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Same problem, different numbers.<BR>\n" );
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document.write( "It took a plane 2 hours to make a trip with the head wind and 1.5 hours to get back with the tail wind. If the speed of the wind was 30mph, how far apart are the two cities?<BR>\n" );
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document.write( " a = plane's airspeed<BR>\n" );
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document.write( " d = r*t = (a-30)*2 = (a+30)*1.5<BR>\n" );
document.write( " 2a - 60 = 1.5a + 45<BR>\n" );
document.write( " a = 210 mi/hr<BR>\n" );
document.write( " d = (210-30)*2<BR>\n" );
document.write( " d = 360 miles </SPAN>\n" );
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