document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=534095>Question 534095</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Josh is skating a pond. He moves at 10 mph going from one end to the other, but on his way back he comes 5 mph. It took him one hour. How long is the pond?\r<BR>\n" );
document.write( "\n" );
document.write( "i tried 10(x-1) + 5(x) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #351278 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=351278\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Josh is skating a pond. He moves at 10 mph going from one end to the other, but on his way back he comes 5 mph. It took him one hour. How long is the pond?<BR>\n" );
document.write( "--------------<BR>\n" );
document.write( "The avg speed for the round trip is<BR>\n" );
document.write( "2*10*5/(10+5) = 100/15 mi/hr<BR>\n" );
document.write( "d = r*t = (100/15) mi/hr * 1hr = 20/3 miles RT<BR>\n" );
document.write( "--> 10/3 miles one-way<BR>\n" );
document.write( "-------------<BR>\n" );
document.write( "Avg speed for a round trip is alway 2*r1*r2/(r1 + r2)<BR>\n" );
document.write( "You can work that out, or take my word for it.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );