document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=715950>Question 715950</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A boat is rowed 10miles downstream in 2 hours. Then rowed 10 miles against current in 2.5 hours. What is the rate of the current? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #439664 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=439664\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A boat is rowed 10miles downstream in 2 hours. Then rowed 10 miles against current in 2.5 hours. What is the rate of the current?<BR>\n" );
document.write( "----<BR>\n" );
document.write( "Down rate = 10 miles/2 hrs = 5 mph<BR>\n" );
document.write( "----<BR>\n" );
document.write( "Up rate = 10 miles/2.5 hrs = 4 mph<BR>\n" );
document.write( "======<BR>\n" );
document.write( "b + c = 5 mph<BR>\n" );
document.write( "b - c = 4 mph<BR>\n" );
document.write( "------<BR>\n" );
document.write( "2b = 9<BR>\n" );
document.write( "b = 4.5 mph (speed of the boat in still water)<BR>\n" );
document.write( "-----<BR>\n" );
document.write( "Solve for \"c\":<BR>\n" );
document.write( "b + c = 5<BR>\n" );
document.write( "4.5 + c = 5<BR>\n" );
document.write( "c = 0.5 mph (speed of the current)<BR>\n" );
document.write( "====================================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "==================== </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );