Question

two minutes after a skydiver opens his parachute, he has descended 1,900 feet. after 5 minutes, descended 4,750 feet. if the distance varies directly with the time, at what rate is the skydiver descending?

Answer 1

1900/ 2= 950

4750/5= 950
Why do you do this? Because you are trying to find the amount of ft per minute.

Answer 2

1,900 ft/ 2 minutes= 950 ft/minute.

4,750 ft/ 5 minutes= 950 ft/minute.

If the distance varies directly with the time, the skydiver is descending at a rate of 950 feet per minute~