document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=585282>Question 585282</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Randy, Using his motorboat, took 5 hours to make a downstream trip in a river with a current 8 kph. The return trip upstream took 9 hours. What is the total distance traveled by Randy's boat? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #373252 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><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=373252\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Randy, Using his motorboat, took 5 hours to make a downstream trip in a river with a current 8 kph. The return trip upstream took 9 hours. What is the total distance traveled by Randy's boat?<BR>\n" );
document.write( "**<BR>\n" );
document.write( "let x=speed of motorboat in still water<BR>\n" );
document.write( "x+8=speed of motorboat downstream<BR>\n" );
document.write( "x-8=speed of motorboat upstream<BR>\n" );
document.write( "distance=travel time*speed<BR>\n" );
document.write( "..<BR>\n" );
document.write( "5(x+8)=9(x-8)<BR>\n" );
document.write( "5x+40=9x-72<BR>\n" );
document.write( "4x=112<BR>\n" );
document.write( "x=28<BR>\n" );
document.write( "distance traveled by Randy's boat=5(x+8)=5*36=180 km </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );