Final answer:
It will take 240 minutes to fill 120 balloons, each with a volume of 1.2 gallons, at a rate of 0.6 gallons per minute.
Step-by-step explanation:
To calculate the time it takes to fill 120 balloons with gas at a rate of 0.6 gallons per minute, when the volume of one balloon is 1.2 gallons, you need to perform the following steps:
- First, calculate the total volume of gas needed for all the balloons by multiplying the number of balloons by the volume of one balloon: 120 balloons × 1.2 gallons/balloon = 144 gallons.
- Then, divide the total volume of gas needed by the rate of filling to obtain the time needed: 144 gallons / 0.6 gallons/minute = 240 minutes.
Therefore, it will take 240 minutes to fill all 120 balloons with gas.