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Help, cant solve this problem

  1. Nov 4, 2005 #1
    Help, cant solve this problem....

    Hi, I have the follwing problem and I dont know how to start.....

    A person make a trip in car with an average speed of 89.5km/h, except when the person stops 22 mins to rest. If the average speed of the person is 77.8km/h, How much time the person spends on the trip? How far the person goes?


    Thanks....
     
  2. jcsd
  3. Nov 4, 2005 #2
    Hello Rafael,

    Can you write 2 equations for the trip time (T), one equation from the first sentence of the problem, and one from the second?

    Hope this helps,
    Walter
     
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