An airplane is flying 35,000 feet above sea level. the airplane starts to descend at a rate of 2,500 feet per minute. let m be the number of minutes. which of the following expressions describe the height of the airplane after any given number if minutes?

35000 - 2500m

Step-by-step explanation:

Height of the airplane before it starts descending = 35,000 feet

Rate of descend = 2500 feet per minute

This means for every 1 minute the height of airplane is decreasing by 2500 feet. So, for every "m" minutes the height of airplane will decrease by 2500m feet.

Let h (m) denotes the height of the airplane after m minutes. The equation for h (m) can be set up as:

Height of airplane at m'th minute = Original Height - Distance descended in m minutes

So,

h (m) = 35000 - 2500m

This expression describes the height of airplane after any number of minutes (m).