Write an express for the speed of the boat coming back from the island in terms of the other boats speed. let x be the speed of the boat you are taking to the island.

If we let x be the speed of the boat you are taking to the island (the steamboat), then we know that the speed of the other boat (the tall ship) is 10 knots less than the steamboat's. So the speed of the tall ship (for the return trip) is (x - 10) knots.

X-10

Step-by-step explanation:

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