document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=783257>Question 783257</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I need to confirm the correct formula setup for this question. I was looking at other examples, and finding it confusing for this formula - distance = rate x time. I have an answer of 2 miles and doesn't sound correct to me. Could I ask for the proper formula set up on this question below?\r<BR>\n" );
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document.write( " A ferry leaves a harbor and travels to a resort island at an average speed of 18 mph. On the return trip, because of fog, the ferry travels at an average speed of 12 mph. The total time for the trip is 5 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 #476649 by </B><A HREF=/tutors/aboutme.mpl?userid=MathTherapy><B>MathTherapy(10552)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathTherapy><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=MathTherapy><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=476649\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "I need to confirm the correct formula setup for this question. I was looking at other examples, and finding it confusing for this formula - distance = rate x time. I have an answer of 2 miles and doesn't sound correct to me. Could I ask for the proper formula set up on this question below?\r<BR>\n" );
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document.write( " A ferry leaves a harbor and travels to a resort island at an average speed of 18 mph. On the return trip, because of fog, the ferry travels at an average speed of 12 mph. The total time for the trip is 5 h. How far is the island from the harbor?\r<BR>\n" );
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document.write( "Let the distance from the harbor to the island, or vice versa, be D<BR>\n" );
document.write( "Then time the ferry took to travel from the harbor to the island = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=D%2F18 ALIGN=MIDDLE  ALT=\"D%2F18\"   DISABLED_style= \"max-width:90%; height:auto;\" > (<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=T+=+D%2FS ALIGN=MIDDLE  ALT=\"T+=+D%2FS\"   DISABLED_style= \"max-width:90%; height:auto;\" >)\r<BR>\n" );
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document.write( "Also, time taken by the ferry to travel from the island to the harbor = <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;\" > (<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=T+=+D%2FS ALIGN=MIDDLE  ALT=\"T+=+D%2FS\"   DISABLED_style= \"max-width:90%; height:auto;\" >)\r<BR>\n" );
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document.write( "Since total time taken to travel both ways = 5 hours, then we can say that: \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=D%2F18+%2B+D%2F12+=+5 ALIGN=MIDDLE  ALT=\"D%2F18+%2B+D%2F12+=+5\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "2D + 3D = 180 ------- Multiplying by LCD, 36\r<BR>\n" );
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document.write( "5D = 180\r<BR>\n" );
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document.write( "D, or distance from the harbor to the island, or vice versa = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=180%2F5 ALIGN=MIDDLE  ALT=\"180%2F5\"   DISABLED_style= \"max-width:90%; height:auto;\" >, or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%2836%29 ALIGN=MIDDLE  ALT=\"highlight_green%2836%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > miles\r<BR>\n" );
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document.write( "You can do the check!! \r<BR>\n" );
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document.write( "Further help is available, online or in-person, for a fee, obviously. Send comments, “thank-yous,” and inquiries to “D” at MathMadEzy@aol.com </SPAN>\n" );
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