Asked by Kate
A plane on a search mission flew east from an airport, turned, and flew west back to the airport. The plane crised at 300km/h when flying east, and 400km/h when flying west. The plane was in the air for 7 hours. How far from the airport did the plane travel?
Answers
Answered by
Henry
Vi = 300km/h, East.
V2 = 400km/h,West.
X hours,East.
(7-X) hours,West.
De = Dw.
300x = 400(7-x)
300x = 2800-400x
300x+400x = 2800
700x = 2800
X = 4 h,East.
De = V*t = 300km/h * 4h = 1200 km =
Dist. travel from airport.
V2 = 400km/h,West.
X hours,East.
(7-X) hours,West.
De = Dw.
300x = 400(7-x)
300x = 2800-400x
300x+400x = 2800
700x = 2800
X = 4 h,East.
De = V*t = 300km/h * 4h = 1200 km =
Dist. travel from airport.
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