SOLUTION: Two planes leave New York at 10 a.m., one heading for Europe at 900 km/h and one heading in the opposite direction at 300 km/h. At what time will they be 1 400 kn apart? How far

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Question 144604: Two planes leave New York at 10 a.m., one heading for Europe at 900 km/h and one heading in the opposite direction at 300 km/h. At what time will they be 1 400 kn apart? How far has each traveled?
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
900x+300x=1,400
1,200x=1,400
x=1,400/1,200
x=1.167 hours they will be 1,400 km. apart.
proof:
900*1.167+300*1.167=1,400
1050+350=1,400
1,400=1,400