What is the appropriate amount of wettable powder for an 80-gallon tank, following the guideline of 3 pounds WP per 100 gallons?

To find the appropriate amount of wettable powder (WP) for an 80-gallon tank, you start with the guideline of 3 pounds of WP per 100 gallons. This ratio indicates that for every 100 gallons of water, you should use 3 pounds of wettable powder.

To calculate the amount needed for an 80-gallon tank, you can set up a proportion based on the rate provided:

1. First, determine the amount needed per gallon by dividing the amount of WP by the total gallons:

[

\frac{3 \text{ pounds}}{100 \text{ gallons}} = 0.03 \text{ pounds per gallon}

]

2. Next, multiply this rate by the 80 gallons in your tank to find the total amount of wettable powder required:

[

80 \text{ gallons} \times 0.03 \text{ pounds per gallon} = 2.4 \text{ pounds}

]

This calculation shows that for an 80-gallon tank, you need 2.4 pounds of wettable powder. This aligns with the correct answer, which emphasizes the importance of accurate measurements in pesticide application, ensuring effectiveness and safety