SOLUTION: at the same moment, two trains leave Edinburgh and London.They move towards each other with constant speeds. the train from Edinburgh is moving at a speed of 60 miles per hou, and

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Question 1116182: at the same moment, two trains leave Edinburgh and London.They move towards each other with constant speeds. the train from Edinburgh is moving at a speed of 60 miles per hou, and the train from London is moving at a speed of 40 miles per hour. The distance between the two places is 350 miles. how long after their departure wil they meet?
Found 2 solutions by addingup, stanbon:
Answer by addingup(3677) About Me  (Show Source):
You can put this solution on YOUR website!
60 + 40 = 100
350/100 = 3.5
they will meet in 3.5 hours or you can say 3 1/2 hours

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
at the same moment, two trains leave Edinburgh and London.They move towards each other with constant speeds. the train from Edinburgh is moving at a speed of 60 miles per hou, and the train from London is moving at a speed of 40 miles per hour. The distance between the two places is 350 miles. how long after their departure wil they meet?
E to L DATA:
distance = x miles ; rate = 60 mph ; time = x/60 hrs
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L to E DATA:
distance = 350-x miles ; rate = 40 mph ; time = (350-x)/40 hrs
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Equation::
time = time
x/60 = (350-x)/40
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40x = 60*350 - 60x
100x = 60*350
x = 60*3.5 = 210 miles
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Ans: time = x/60 = 210/60 = 21/6 = 7/2 = 3.5 hrs
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Cheers,
Stan H.
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