SOLUTION: Two cars start from ths same city at the same time. one travels at 45mi/h, and the other at 60 mi/h in the opposite direction. how long it will take for them to be 250 mi apart. gi

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Question 842449: Two cars start from ths same city at the same time. one travels at 45mi/h, and the other at 60 mi/h in the opposite direction. how long it will take for them to be 250 mi apart. give your answer in hours and minutes.
Answer by LinnW(1048) About Me  (Show Source):
You can put this solution on YOUR website!
They are moving away from each other at a combined rate of (45+60)mi/hr
or 105 mi/hr
Since d = r*t and t = d/r
t = 250/105 = 2.380952381 hours
0.380952381*60 = 22.8571429 minutes
so t = 2 hours 22.8571429 minutes