document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=717975>Question 717975</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A boat traveled 210 miles downstream and back. The trip downstream took 10 hours. The trip back<BR>\n" );
document.write( "took 70 hours. What is the speed of the boat in still water? What is the speed 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 #440627 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=440627\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A boat traveled 210 miles downstream and back. The trip downstream took 10 hours. The trip back<BR>\n" );
document.write( "took 70 hours. What is the speed of the boat in still water? What is the speed of the current?<BR>\n" );
document.write( "-----------------<BR>\n" );
document.write( "Find the 2 speeds, d/stream and u/stream<BR>\n" );
document.write( "Use d = r*t<BR>\n" );
document.write( "r = d/t<BR>\n" );
document.write( "-------<BR>\n" );
document.write( "The boat's speed is the average of the 2 speeds.<BR>\n" );
document.write( "The current is the difference is boat speed and either of the others.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );