Post a New Question

Math

posted by .

Trains a and b are travelling in the same direction on parallel tracks. Train a is travelling at 40mph and train b is travelling 48mph.Train a passes a station at 3:10 a.m. If train b passes the same station at 3:40 a.m., at what time willtrain b catcth up tomtrain a?

  • Math -

    Remember your formula d=rt
    40t=48(t-.30)
    40t=48t-14.4
    combine like terms
    40t-48t=-14.4
    8t=-14.4
    isolate your t
    t= 14.4/8 or 1.8 hours

    With these word problems it is important to have your formula chart handy. This gives you a map to finding the answer.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

More Related Questions

Post a New Question