SOLUTION: A jet airliner flies at 300 mph for the first half hour and last half hour of a flight. The rest of the time it flies at 600 mph. How long does it take to fly a distance of 2700 mi
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Question 514809: A jet airliner flies at 300 mph for the first half hour and last half hour of a flight. The rest of the time it flies at 600 mph. How long does it take to fly a distance of 2700 miles? Answer by ankor@dixie-net.com(22740) (Show Source):
You can put this solution on YOUR website! A jet airliner flies at 300 mph for the first half hour and last half hour of a flight.
The rest of the time it flies at 600 mph.
How long does it take to fly a distance of 2700 miles?
:
Write a distance equation; dist = speed * time
.5(300) + t(600) + .5(300) = 2700
150 + 600t + 150 = 2700
600t + 300 = 2700
600t = 2700 - 300
600t = 2400
t = 2400/600
t = 4 hrs at 600 mph
:
Total time: .5 + 4 + .5 = 5 hrs
