MATH

posted by .

Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at 40 miles per hour and train B is traveling at 60 miles per hour. Train A passes a station at 8:20pm. If train B passes at the same station at 8:35 p.m at what time will train B catch
up to train A.

  • MATH -

    when B gets to station, A is this far ahead:

    distance: 1/4 hr*40mph= 10 miles.

    So, to make up that 10 miles, B is traveling at a relative velocity of 20 mph (60-40)
    time= distance/velocity= 10/20 hr

  • MATH -

    so, add that time, 30 min, to 8:35

  • MATH -

    In 1994, the life expectancy of males in a certain country was 73.8 years. In 2000, it was 77.4 years. Let E represent the life expectancy in year t and let t represent the number of years since 1994

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Algebra

    I am so lost can someone please help me Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at 80 miles per hour and train B is traveling at 100 miles per hour. Train A passes a station at 11:15am. …
  2. algebra

    I need help with a word problem. Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at 60 miles per hour and train B is traveling at 70 miles per hour.Train A passes a station at 6:10 A.M. If …
  3. Algebra

    I'm lost. Please help me solve. Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at 60 miles per hour and train B is traveling at 80 miles per hour. Train A passes a station at 3:25pm. If …
  4. algebra

    trains a&B are traveling in the same direction on parallel tracks. train a is traveling at 60 miles per hour and train b is traveling at 70 miles per hour. train a passes a station at 3:15a.m. if train b passes a station at 3:45a.m., …
  5. college

    Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at 80 Miles per hour and train B is traveling at 88 miles per hour. Train A passes a station at 1:20 am A.M. If train B passes the same station …
  6. college

    Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at 80 Miles per hour and train B is traveling at 88 miles per hour. Train A passes a station at 1:20 am A.M. If train B passes the same station …
  7. Algebra

    I don't understand can someone help me on how to figure this out please !! Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at 80 miles per hour an train B is traveling at 100 miles per hour. …
  8. Algebra

    Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at 100 miles per hour and train B is traveling at 120 miles per hour. Train A passes a station at 5:10pm. If train B passes the same station …
  9. algebra

    trains a and b are traveling in the same direction on parallel tracks. train a is traveling at 100 miles per hour and train b is traveling at 110 miles per hour. train a passes a station at 10:10 p.m. if train b passes the same station …
  10. algebra

    trains a and b are traveling in the same direction on parallel tracks. train a is traveling at 100 miles per hour and train b is traveling at 110 miles per hour. train a passes a station at 10:10 p.m. if train b passes the same station …

More Similar Questions