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Unread 10-04-2005, 20:44
sanddrag sanddrag is offline
On to my 16th year in FRC
FRC #0696 (Circuit Breakers)
Team Role: Teacher
 
Join Date: Jul 2002
Rookie Year: 2002
Location: Glendale, CA
Posts: 8,507
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How wide is the river?

I'm trying to solve this problem. http://home.att.net/~numericana/answ...onal.htm#ferry I understand most of it except for one thing. With the equation method of solving, how is it valid to divide the two equations? I know you are trying to eliminate the speed variable but I have never heard of that method (dividing equations) of solving before. Can someone please explain why that works?

And for the part below in blue text, I don't understand this part
Quote:
The boat which had travelled 720 yd at the first meeting has therefore travelled three times that (2160 yd) at the second meeting.
Can someone represent this graphically for me?

I have spent over two hours on this and I just can't understand. Please help.
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Student Mechanical Leader and Driver, Team 696 Circuit Breakers, 2002-2004
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