a red hot ar balloon is 100 feet off the ground and is rising at a rate of 8 feet per second. a green hot air balloon is 160 feet of the ground and rising at a rate of 5 feet per second. after how long will the red balloon be at the same height of the green one.
see if you just simply took out a calculator you would see its not possible unless you knew what the balloon is descending at during the fraction of the seconds
