document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=41822>Question 41822</A>: <I><SPAN STYLE=\"word-break: break-all;\"> With the current, a motorboat travels 60 mi in 3 h. Against the current, it takes 2 h longer to travel 60 mi. Find 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 #26999 by </B><A HREF=/tutors/aboutme.mpl?userid=Paul><B>Paul(988)</B></A><img src=\"/images/stars/stars-11.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Paul><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=26999\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let y be the speed of the boat<BR>\n" );
document.write( "Let x be the speed of the current<BR>\n" );
document.write( "2 hours longer = 5 hours total<BR>\n" );
document.write( "FIRST EQUATION:<BR>\n" );
document.write( "3x+3y=60<BR>\n" );
document.write( "y=20-x (Subsitution)\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "SECOND EQUATION:<BR>\n" );
document.write( "5x-5y=60<BR>\n" );
document.write( "y=12+x<BR>\n" );
document.write( "SUBSITUTE<BR>\n" );
document.write( "20-x=12+x<BR>\n" );
document.write( "2x=8<BR>\n" );
document.write( "x=4<BR>\n" );
document.write( "y=20-4<BR>\n" );
document.write( "y=16<BR>\n" );
document.write( "Hence, the speed of the boat is 16mph and the speed of the current 4mph.<BR>\n" );
document.write( "Paul. </SPAN>\n" );
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