How much pesticide must be added to a 450-gallon tank at 22 GPA if the pesticide rate is 2 quarts per acre?

To determine the correct amount of pesticide to add to a 450-gallon tank with a rate of 2 quarts per acre and a spray rate of 22 gallons per acre (GPA), it's essential to follow these steps:

1. Calculate the number of acres that can be treated with the 450-gallon tank: Since the tank sprays at a rate of 22 GPA, you divide the total gallons in the tank by the GPA.

[

\text{Acres treated} = \frac{450 \text{ gallons}}{22 \text{ GPA}} \approx 20.45 \text{ acres}

]

2. Calculate the total pesticide needed for the entire area: Knowing that the pesticide rate is 2 quarts per acre, multiply the acres manageable by the amount required per acre.

[

\text{Total pesticide} = 20.45 \text{ acres} \times 2 \text{ quarts per acre} \approx 40.9 \text{ quarts}

]

3. Convert quarts to gallons: Since there are 4 quarts in a gallon, divide the quarts needed by 4