SOLUTION: a train heads west at 90 miles per hour. another train on teh same track is in front of the first train. it heads west at 60 miles per hour. at 2:00 pm, the trains are 75 miles apa

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Question 797597: a train heads west at 90 miles per hour. another train on teh same track is in front of the first train. it heads west at 60 miles per hour. at 2:00 pm, the trains are 75 miles apart. if they both keep a constant speed, how far apart will they be at 2:30 pm?
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Their distance between is DECREASING at 90-60=30 miles per hour.
The two trains begin 75 miles apart and the distance decreases 30 mph.

In 2pm to 2:30pm, half hour passes, so 30%2A%281%2F2%29+%28miles%2Fhour%29%28hour%29=15 miles decrease from the initial given 75; there fore 75-15=60 miles apart at 2:30pm.




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