document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1145935>Question 1145935</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Arron’s boat travels 9 mile per hour in still water. The speed of the river is 4 miles per hour. How long will it take Arron to travel 18 miles upstream?<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #767213 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39620)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=767213\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> --------<BR>\n" );
document.write( "Boat travels r mile per hour in still water. The speed of the river is c miles per hour. How long will it take to travel d miles upstream?<BR>\n" );
document.write( "--------\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Upstream, boat will travel at  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r-c ALIGN=MIDDLE  ALT=\"r-c\"   DISABLED_style= \"max-width:90%; height:auto;\" > <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=miles%2Fhour ALIGN=MIDDLE  ALT=\"miles%2Fhour\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "If x is amount of time of travelling asked for, then<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28r-c%29x=d ALIGN=MIDDLE  ALT=\"%28r-c%29x=d\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%28x=d%2F%28r-c%29%29 ALIGN=MIDDLE  ALT=\"highlight_green%28x=d%2F%28r-c%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );