SOLUTION: two trains leave Dallas at 9:00am The eastboud train travels at 45mi/h. the westbound train travels at 60 mi/h. at what time will the two trains be 420 mi apart ?

Question 69350: two trains leave Dallas at 9:00am The eastboud train travels at 45mi/h. the westbound train travels at 60 mi/h. at what time will the two trains be 420 mi apart ?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
two trains leave Dallas at 9:00am The eastboud train travels at 45mi/h. the westbound train travels at 60 mi/h. at what time will the two trains be 420 mi apart ?
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West train DATA:
rate= 60 mph ; time = x hours ; distance = rt = 60x miles
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East train DATA:
rate=45mph ; time = x hours ; distance = rt = 45x miles
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EQUATION:
distance + distance = 420 miles
60x + 45x = 420
105x = 420
x=4 hours
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Cheers,
Stan H.
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