Question

An airplane flying at an altitude of 32,000 feet descends at a rate of 1,300 feet per minute. If the plane
descends for 15 minutes, what would its altitude be in feet?

Answer 1

if t is the time (in minutes) and h is the height (in feet), then you have this equation

h = -1300t + 32000

Answer 2

plug in t = 15 to get your answer