SOLUTION: A ferry leaves a harbor and travels to a resort island at an average speed of 22 mph. On the return trip, the ferry travels at an average speed of 18 mph because of fog. The total

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Question 394098: A ferry leaves a harbor and travels to a resort island at an average speed of 22 mph. On the return trip, the ferry travels at an average speed of 18 mph because of fog. The total time for the trip is 5 hours. How far is the island from the harbor?
Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!

Let d = distance of the island from the harbor. Then

d%2F22+%2B+d%2F18+=+5 ==> d+=+5%2F%281%2F22++%2B1%2F18%29+=+49.5 miles.