Posted by **Kate** on Wednesday, January 2, 2013 at 6:19pm.

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?

- Math -
**Henry**, Thursday, January 3, 2013 at 8:51pm
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.

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