How much formulation should be added to the tank if the equipment is calibrated to spray 50 gallons per acre and the label calls for 3 pounds of formulation per 100 gallons, and 50 gallons is needed to finish spraying?

To determine how much formulation should be added to the tank for a spray application, it's essential to first convert the requirement from the label into terms that correspond to the amount you are applying—specifically, into the volume you are using.

The label specifies that 3 pounds of formulation is required per 100 gallons of water. Since the application equipment is calibrated to spray 50 gallons per acre, you can calculate the amount of formulation needed for this volume.

1. First, find the rate of formulation per gallon. Since 3 pounds is required for 100 gallons, the rate becomes:

• 3 pounds / 100 gallons = 0.03 pounds per gallon.

2. Next, you need to determine how much formulation is needed for 50 gallons:

• 0.03 pounds per gallon × 50 gallons = 1.5 pounds.

Thus, the correct answer indicates that you would need to add 1.5 pounds of formulation to the tank to meet the requirement for the 50-gallon application, aligning with the calibrated equipment volume and what the label specifies. This calculation ensures that you adhere to the recommended dosage while effectively utilizing the equipment's capabilities.