SOLUTION: A plane fills its fuel tank with 45 liters of fuel. The plane burns fuel at a rate of 12 liters per hour. The plane's average speed is 85 kilometers per hour. How far can the plane

Question 809112: A plane fills its fuel tank with 45 liters of fuel. The plane burns fuel at a rate of 12 liters per hour. The plane's average speed is 85 kilometers per hour. How far can the plane travel in order to have 3 liters of fuel remaining in its tank when it refuels? Round your answer to the nearest tenth of a kilometer.

Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
fuel burn: v = 45 - 3 = 42 liters
burn rate = v / t = 12 L/hr
flight time = v / 12
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t = 42 / 12 = 3.5 hours
s = d / t
d = s * t
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Answer:
d = 85 * 3.5 = 297.5 km
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