SOLUTION: Mrs.Hong's class is on a ferry that is traveling 30 miles her hour. The students notice that they are passing right by a fishing boat that is traveling in exactly the opposite dire

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: Mrs.Hong's class is on a ferry that is traveling 30 miles her hour. The students notice that they are passing right by a fishing boat that is traveling in exactly the opposite dire      Log On


   

Question 1049877: Mrs.Hong's class is on a ferry that is traveling 30 miles her hour. The students notice that they are passing right by a fishing boat that is traveling in exactly the opposite direction at 55 miles per hour. How long will it be before the two vessels are 2 miles apart??
Answer by stanbon(75887) About Me  (Show Source):
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Mrs.Hong's class is on a ferry that is traveling 30 miles her hour. The students notice that they are passing right by a fishing boat that is traveling in exactly the opposite direction at 55 miles per hour. How long will it be before the two vessels are 2 miles apart??
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They are separating at a rate of 30+55 = 85 mph
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time = dist/rate = 2/85 = 0.0235 hrs = 1min 24.7sec
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Cheers,
Stan H.
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