SOLUTION: A round trip in a helicopter lasted 4.5 hours. The helicopter flew away from the airport at 100 miles per hour and returned at 5 miles per hour. In miles what was the helicopters g
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Question 747409: A round trip in a helicopter lasted 4.5 hours. The helicopter flew away from the airport at 100 miles per hour and returned at 5 miles per hour. In miles what was the helicopters greatest distance from the airport.
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
A round trip in a helicopter lasted 4.5 hours.
The helicopter flew away from the airport at 100 miles per hour and returned at 5 miles per hour.
In miles what was the helicopters greatest distance from the airport.
:
Let d = furthest distance from the airport, (point of return)
:
Write a time equation; time = dist/speed
:
+ = 4.5
multiply equation by 100, results:
d + 20d = 100(4.5)
21d = 450
d = 450/21
d = 21.43 miles furthest dist from airport
:
:
Confirm this by finding the actual time each way
21.43/100 = .214 hrs
21.43/5 = 4.286
----------------
total time: 4.5 hrs
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