document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=654953>Question 654953</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A motorboat went 50 miles in 4 hours when traveling at full speed upstream on river whose current  flows at the rate of 7miles per hour.How fast can the boat travel in still water? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #408890 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley79><B>checkley79(3341)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley79><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=408890\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> D=RT<BR>\n" );
document.write( "50=(R-7)4<BR>\n" );
document.write( "50=4R-28<BR>\n" );
document.write( "4R=50+28<BR>\n" );
document.write( "4R=78<BR>\n" );
document.write( "R=78/4<BR>\n" );
document.write( "R=19.5 MPH IS THE SPED OF THE BOAT IN CALM WATERS.<BR>\n" );
document.write( "PROOF:<BR>\n" );
document.write( "50=(19.5-7)4<BR>\n" );
document.write( "50=12.5*4<BR>\n" );
document.write( "50=50 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );