SOLUTION: an airplane 40,000 feet above the ground begins descending at the rate of 3000. assume the plane continues at the same rate of descent. the planes height and minutes above the grou

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Question 946818: an airplane 40,000 feet above the ground begins descending at the rate of 3000. assume the plane continues at the same rate of descent. the planes height and minutes above the ground are related to each other.
a. write and equation to model the situation
b. find the altitude of the plane after 6 minutes

Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
I assume you mean "at a rate of 3000 ft per minute".
When time is equal to zero, altitude is 40000.
a)A=40000-3000t
b)A%286%29=40000-3000%286%29
A%286%29=40000-18000
A%286%29=22000
22000 feet