document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=928688>Question 928688</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A boat travels 36 miles downstream in the same amount of time that it takes to travel 24 miles upstream. The boat travels at a still water rate that is 12 miles per hour more than the rate of the current. 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 #563771 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=563771\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A boat travels 36 miles downstream in the same amount of time that it takes to travel 24 miles upstream. The boat travels at a still water rate that is 12 miles per hour more than the rate of the current. Find the rate of the current.<BR>\n" );
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document.write( "Downstream DATA::<BR>\n" );
document.write( "distance = 36 miles ; time = x hrs ; rate = d/t = 36/x mph<BR>\n" );
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document.write( "Upstream DATA:<BR>\n" );
document.write( "distance = 24 miles ; time = x hrs ; rate = d/t = 24/x mph<BR>\n" );
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document.write( "Equations:<BR>\n" );
document.write( "b + c = 36/x<BR>\n" );
document.write( "b - c = 24/x<BR>\n" );
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document.write( "2b = (60/x)<BR>\n" );
document.write( "boat speed = 30/x<BR>\n" );
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document.write( "2c = 12/x<BR>\n" );
document.write( "current speed = 6/x<BR>\n" );
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document.write( "Equation<BR>\n" );
document.write( "boat speed = current speed + 12<BR>\n" );
document.write( "30/x = 6/x + 12<BR>\n" );
document.write( "24/x = 12<BR>\n" );
document.write( "x = 2<BR>\n" );
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document.write( "Ans: current speed = 6/x = 6/2 = 3 mph<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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