Hot Air Balloon
By: Sahithi Arimanda, Nikita Ganji
Our function is f(m)=800-20m .
It takes 39 minutes because you plug in 20 for y. 20=800-20m and we solved it and got 39.
The function is f(m)=1200-20m and it takes 20 more minutes to reach the ground for the second balloon. They both take 20 feet per minute.
The function is f(m)=800-30m and it would take 13 1/3 minutes less.This one descends 30 feet per minute while the others descend 20 feet per minute.
The function for the fourth balloon is 30m and to get the answer we did 30m=800-20m and m=16 minutes. At 16 minutes the first and fourth balloon are at 480 feet. That is the point of interception.
We did 0=800-20m and got m=40 minutes and then we plugged in 40 for m and did
800-20(40)=30(40) and we got 1200 feet. So they would have to start at 1200 feet.