Question

An airplane ying 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

y = -1300m + 32000.....m stands for minutes...m = 15
y = -1300(15) + 32000
y = - 19500 + 32000
y = 12500 ft <===