document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=201823>Question 201823</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/9780395977224/algebrahomeworkh>Algebra Structure and Method</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> Using 5 step method solve<BR>\n" );
document.write( "A sailboat travels 20 miles downstream in 3 hours. It returns in 4 hours. Find the speed of the sailboat in still water and 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 #152063 by </B><A HREF=/tutors/aboutme.mpl?userid=rfer><B>rfer(16322)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rfer><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=152063\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> make the boat =x<BR>\n" );
document.write( "make the water =y<BR>\n" );
document.write( "against flow 4(x-y)=20<BR>\n" );
document.write( "with flow 3(x+y)=20\r<BR>\n" );
document.write( "\n" );
document.write( "distance is equal so the two equations are equal<BR>\n" );
document.write( "4(x-y)=3(x+y)<BR>\n" );
document.write( "4x-4y=3x+3y<BR>\n" );
document.write( "x=7y<BR>\n" );
document.write( "-------------<BR>\n" );
document.write( "substitute 7y for x in equation<BR>\n" );
document.write( "4(7y-y)=20<BR>\n" );
document.write( "28y-4y=20<BR>\n" );
document.write( "24y=20<BR>\n" );
document.write( "y=.83 mph speed of water<BR>\n" );
document.write( "------------------------------------<BR>\n" );
document.write( "speed of boat=7y=7(.83)=5.81 mph<BR>\n" );
document.write( "  </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );