Algebra

A train leaves a city heading west and travels at 50 miles per hour. Three hours later, a second train leaves from the same place and travels in the same direction at 65 miles per hour. How long will it take for the second train to overtake the first train.

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asked by Avery
  1. To do these kind of questions, you have to ask yourself, what quantities are equal, so I can set up an equation.

    When the second train overtakes the first, aren't the distances traveled by each equal ?

    The slower train went t+3 hours, while the faster train only went t hours, right?

    You know their rates, so can you find the distances they went?

    let me know how you made out.

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    posted by Reiny
  2. don't get it

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    posted by Avery
  3. It will take 10h for the second train to catch up after it leaves. I think.

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    posted by Flynn

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