SOLUTION: one plane leaves an airport at a speed of 180 km/hr. a jet leaves the airport two hours later at a speed of 900 km/hr. how far from the airport will the jet overtake the plane?

Question 834943: one plane leaves an airport at a speed of 180 km/hr. a jet leaves the airport two hours later at a speed of 900 km/hr. how far from the airport will the jet overtake the plane?
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
The question implies that the two planes are traveling the same route.

The jet, faster plane, flies for t hours. Meanwhile, the one plane has been traveling for t+2 hours.

_____________speed________time____________distance______|____Equations
slow plane______180__________t+2_____________d__________|__
Jet__________900___________t______________d__________|__

Pick either equation and solve for t. Substitute the expression for t into the other equation and solve it for d.
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