SOLUTION: a plane is descending at the rate of 640 feet per minute. now(at time zero), its altitude is 30,000 feet. negatgive times in the table mean minutes just past. positive times mean m

Question 200381: a plane is descending at the rate of 640 feet per minute. now(at time zero), its altitude is 30,000 feet. negatgive times in the table mean minutes just past. positive times mean minutes to come.
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
a plane is descending at the rate of 640 feet per minute. now(at time zero), its altitude is 30,000 feet. negatgive times in the table mean minutes just past. positive times mean minutes to come.
-----------------
You didn't say what you want to do, but I'll give a formula for altitude as a function of time.
------------
A = 30000 - 640t (altitude in feet, t in minutes)

RELATED QUESTIONS
One plane at 520 feet is ascending at a rate of 40 feet per minute, while another plane... (answered by ankor@dixie-net.com)

One plane ate 520 feet is ascending at a rate of 40 feet per minute, while another plane... (answered by mananth)

A plane is cruising at an altitude of 24,000 ft. The plane begins to descend at a rate... (answered by mananth)

one plane at 520 feet is ascending at the rate of 40 ft per minute, while another plane... (answered by mananth)

I need help with Linear systems word problems. Onf question that I am having trouble with (answered by Alan3354)

An airplane is preparing to land at an airport. It is 52200 feet above the ground and... (answered by ankor@dixie-net.com)

mark is piloting a plane at 12,000 feet and begins to descends at a rate of 250 feet per... (answered by josmiceli)

If a ball is tossed into the air from height of 6 feet with a velocity of 32 feet per... (answered by vleith)

Lynn is pioloting a plane at an altitude of 10,000 feet. She begins to desend at a rate... (answered by Alan3354)