Two trains leave Raleigh at the same time, one traveling north, the other south. The first train travels at 50 miles per hour and second at 60 miles per hour. In how many hours will the trains be 275 miles apart?

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asked by Avery
  1. let the time be t hours
    distance going north = 50t
    distance going south = 60t

    solve 50t + 60t = 275

    let me know what you get.

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    posted by Reiny
  2. 2.5 hours

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    posted by Avery
  3. good job

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    posted by Reiny
  4. What's the inequality though?

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  5. 2 11/22 hours

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  6. You are meeting a friend who lives 285 miles away. You both leave at the same time and head directly toward each other. You travel at a speed 10 mph faster than your friend. You finally meet after each traveling for 5 hours. What was your speed, in mph, to the nearest tenth?

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    posted by Noah
  7. Two trains leave the station at the same time, one heading west and the other east. The westbound train travels
    miles per hour slower than the eastbound train. If the two trains are
    miles apart after
    hours, what is the rate of the westbound train?

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