Question

An airplane is 16,000 feet above the ground. It begins to descend at a rate of 140 feet per minute. Write an equation you could use to solve for x, the number of minutes it will take until the plane is 12,600 feet above the ground.​

Answer 1

16000=140x

It will take 90 minutes to hit 12,600 ft above ground.

Explanation:

Just swap out 16000 for 12600. Then solve from there.

Hope it helped!