Question

The height of an airplane during a landing is given by 22,000+(-480t)where t is the time and minutes, how many minutes it takes the plane to land to the nearest hundredth of a minute.

Answer 1

We are given the equation:

h = 22,000 – 480 t

where h is height . The plane will land when h = 0, therefore:

0 = 22,000 – 480 t

480 t = 22,000

t = 45.83 minutes

 

hence the plane will land after 45.83 minutes