# math (altitude)

posted by .

An airplane flying at an altitude of 31,000 feet descends at a rate of 1,200 feet per minute. If the plane descends for 15 minutes, what would its altitude be in feet?: *
13,000
23,000
18,000
21,000

• math (altitude) -

Calculate how far it falls in 15 minutes and subtract that from the original altitude

• math -

i need the dafaniton and a picture

• math -

i mean of altitude a definition and picture

• math (altitude) -

1200*15 = 18,000
31,000 - 18,000 = 13,000 ft.

• math (altitude) -

13,000 meters

## Similar Questions

1. ### Math

A plane flying at an altitude of 10,000 feet begins descending when the end of the runway is 50,000 feet from a point on the ground directly below the plane. Find the measure of the angle of descent (depression) to the nearest degree.
2. ### Math

A plane was flying at an altitude of 30,000 feet when it began the descent toward the airport. The airplane descends at a rate of 850 feet per minute. a. What is the function rule that describes this situation?
3. ### proportional relationship

An airplane is flying at an altitude of 4000 feet and descends at a rate of 200 feet per min. Determine whether the altitude is proportional to the # of min.
4. ### Math

The altitude of a plane as it begins to descend is shown by the linear equation a = 22,000 – 800m, where a is the plane’s altitude, in feet, and m is minutes. What is the plane’s altitude when m = 12?
5. ### Trig application

I have been working on this problem but I am not sure I am doing it right. During takeoff an airplane's angle of ascent is 18 degrees and its speed is 275 feet per second. A. Find the plane's altitude after 1 minute. B. How long will …
6. ### Alaniz

An airplane is flying at an altitude of 4000 feet and descends at a rate of 200 ft./m determine whether the altitude is proportional to the number of minutes. Explain your reasoning?
7. ### Math

An airplane flying an altitude of 34,000 ft descends at a rate of 25 ft per second. What is the height of the plane after 3 minutes?
8. ### MATHS

A plane is flying at 31,348 feet. It needs to rise to 36,000 feet in two stages. In stage 1, it rises 5% of its initial altitude of 31,348 feet. In stage 2, it rises at a rate of 140.3 feet per minute. How many minutes does it take …
9. ### maths

A plane is flying at 31,348 feet. It needs to rise to 36,000 feet in two stages. In stage 1, it rises 5% of its initial altitude of 31,348 feet. In stage 2, it rises at a rate of 140.3 feet per minute. How many minutes does it take …
10. ### math

When an airplane leaves the runway, its angle of climb is 24° and its speed is 345 feet per second. How long will it take the plane to climb to an altitude of 10,000 feet?

More Similar Questions