SOLUTION: A Coast Guard ship made a trip to NYC and back. The trip there took 3 hours and the return trip took 4 hours and the return trip took 4 hours. It averaged 6 knots on the return tr

Question 640168: A Coast Guard ship made a trip to NYC and back. The trip there took 3 hours and the return trip took 4 hours and the return trip took 4 hours. It averaged 6 knots on the return trip. Find the average speed of the trip there.
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = distance to NYC
Let = the speed in knots for trip to NYC
given:
trip to NYC:

trip back:

By substitution:

The speed of the trip there is 8 knots
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