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OpenStudy (anonymous):
Two train stations have 1,200 miles of track between them. If one train travels at 70 miles per hour, and the two trains start at the same time, how many hours will it take until they meet? A) 5 B) 7.5 C) 25 D) 30.4 or E) 52?
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OpenStudy (a_clan):
What is the speed of 2nd train?
OpenStudy (anonymous):
Oh sorry the second train travels 90m/hr.
OpenStudy (anonymous):
x = number of hours until they meet 70x+90x=1,200 B) 7.5
OpenStudy (anonymous):
kk thank you
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