document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=943271>Question 943271</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A ferry leaves a harbor and travels to a resort island at an average speed of 22 mph. On the return trip, because of fog, the ferry travels at an average speed of 10 mph. The total time for the trip is 4 h. How far is the island from the harbor? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #575052 by </B><A HREF=/tutors/aboutme.mpl?userid=macston><B>macston(5194)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=macston><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=macston><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=575052\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Distance one way =D<BR>\n" );
document.write( "D/22+D/10=4 find common denominator<BR>\n" );
document.write( "D/22(5/5)+D/10(11/11)=4 hrs<BR>\n" );
document.write( "5D/110+11D/110=4 hrs<BR>\n" );
document.write( "16D/110=4 hrs multiply each side by 110<BR>\n" );
document.write( "16D=440 Divide each side by 16<BR>\n" );
document.write( "D=27.5 mi ANSWER The island is 27.5 mi from the harbor<BR>\n" );
document.write( "CHECK <BR>\n" );
document.write( "round trip=time outbound(22 mph)+time inbound(10 mph)<BR>\n" );
document.write( "4 hrs=27.5mi/22mph+ 27.5mi/10mph<BR>\n" );
document.write( "4 hrs=1.25 hrs+2.75 hrs<BR>\n" );
document.write( "4 hrs=4 hrs </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );