document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1154015>Question 1154015</A>: <I><SPAN STYLE=\"word-break: break-all;\"> It takes a boat 2 hours to travel 28 miles downstream and 4 hours to travel 24 miles upstream. \r<BR>\n" );
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document.write( "What is the speed of the boat in still water? <BR>\n" );
document.write( "The boat travels at_____ miles per hour in still water. \r<BR>\n" );
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document.write( "What is the speed of the current of the river? <BR>\n" );
document.write( "The speed of the current is ____miles per hour. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #776384 by </B><A HREF=/tutors/aboutme.mpl?userid=MathTherapy><B>MathTherapy(10551)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathTherapy><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=MathTherapy><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=776384\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "It takes a boat 2 hours to travel 28 miles downstream and 4 hours to travel 24 miles upstream. \r<BR>\n" );
document.write( "\n" );
document.write( "What is the speed of the boat in still water? <BR>\n" );
document.write( "The boat travels at_____ miles per hour in still water. \r<BR>\n" );
document.write( "\n" );
document.write( "What is the speed of the current of the river? <BR>\n" );
document.write( "The speed of the current is ____miles per hour.<BR>\n" );
document.write( "<PRE STYLE=\"white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;\">Let speed of boat in still water be S, and speed of current, C<BR>\n" );
document.write( "Then overall speed traveling downstream: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=matrix%281%2C10%2C+S+%2B+C%2C+%22=%22%2C+28%2F2%2C+%22____%22%2CS+%2B+C%2C+%22=%22%2C+14%2C+%22-----%22%2C+eq%2C+%22%28i%29%22%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Also, overall speed traveling upstream:  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=matrix%281%2C10%2C+S+-+C%2C+%22=%22%2C+24%2F4%2C+%22____%22%2C+S+-+C%2C+%22=%22%2C+6%2C+%22------%22%2C+eq%2C+%22%28ii%29%22%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "2S = 20 ----- Adding eqs (ii) & (i)<BR>\n" );
document.write( "S, or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%28matrix%281%2C9%2C+Speed%2C+in%2C+still%2C+water%2C+%22=%22%2C+20%2F2%2C+%22=%22%2C+10%2C+mph%29%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Try and determine the speed of the current on your own! </SPAN>\n" );
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