document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=798793>Question 798793</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A fairy leaves a harbor and travels at an average speed of 16 mph. Because of the fog the fairy returns traveling at an average speed of 12 mph. The total time for the trip was 7 hours. 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 #482504 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=482504\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A fairy leaves a harbor and travels at an average speed of 16 mph.<BR>\n" );
document.write( " Because of the fog the fairy returns traveling at an average speed of 12 mph.<BR>\n" );
document.write( " The total time for the trip was 7 hours.<BR>\n" );
document.write( " How far is the island from the harbor?<BR>\n" );
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document.write( "I think you mean \"ferry\", but anyway;<BR>\n" );
document.write( "let d = the one way distance to the island<BR>\n" );
document.write( "write a time equation, time = dist/speed<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%2F16 ALIGN=MIDDLE  ALT=\"d%2F16\"   DISABLED_style= \"max-width:90%; height:auto;\" > + <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d%2F12 ALIGN=MIDDLE  ALT=\"d%2F12\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 7<BR>\n" );
document.write( "multiply eq by 48<BR>\n" );
document.write( "3d + 4d = 48(7)<BR>\n" );
document.write( "7d = 48(7)<BR>\n" );
document.write( "divide both sides by 7<BR>\n" );
document.write( "d = 48 miles to the island<BR>\n" );
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document.write( "Check by finding the time each way<BR>\n" );
document.write( "48/16 = 3 hrs<BR>\n" );
document.write( "48/12 = 4<BR>\n" );
document.write( "----------<BR>\n" );
document.write( "total: 7 hrs </SPAN>\n" );
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