SOLUTION: A motorboat leaves a dock and travels an average speed of 15mph towards an island. The speed on the return is only 10mph. If the return trip takes 1 hour longer, how far is the isl
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Question 1052000: A motorboat leaves a dock and travels an average speed of 15mph towards an island. The speed on the return is only 10mph. If the return trip takes 1 hour longer, how far is the island from the dock? Answer by ikleyn(52887) (Show Source):
You can put this solution on YOUR website! .
A motorboat leaves a dock and travels an average speed of 15mph towards an island. The speed on the return is only 10mph.
If the return trip takes 1 hour longer, how far is the island from the dock?
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15t = 10*(t+1).
Solve for t (which is the time at the speed of 15 mph).
After finding t determine the distance as 15*t.
