If an aircraft sprays 20.2 gallons per minute, how much time is needed to spray out 147 gallons of spray mixture?

To determine how much time is required to spray out 147 gallons of spray mixture at a rate of 20.2 gallons per minute, you can use the formula for time, which is calculated by dividing the total volume to be sprayed by the rate of spraying.

In this case, you divide 147 gallons by the spray rate of 20.2 gallons per minute:

Time = Total Volume / Spray Rate

Time = 147 gallons / 20.2 gallons per minute

Time = 7.27 minutes

Rounding this to one decimal place gives you approximately 7.3 minutes.

Thus, 7.3 minutes is the correct amount of time needed to spray the entire 147 gallons at that specific rate. This calculation illustrates the direct relationship between rate, time, and volume, which is essential in understanding application rates in aerial spraying operations.