A point on an island is located 24miles southwest of a dock. A ship leaves the dock at 1:00pm traveling west at 12 miles per hour. At what time(s) to the nearest minute is the ship 20miles from the point?
Warning: This question was asked under "Law of Cosines". The following does not use the "Law of Cosines"
Based on the Pythagorean Theorem
the boat must travel
The ratio of distance to time for the boat is