How much wettable powder should be added to an 80-gallon tank if the instructions require 3 pounds per 100 gallons?

To determine the correct amount of wettable powder that should be added to an 80-gallon tank, it is important to first understand the application rate specified in the instructions, which is 3 pounds of wettable powder for every 100 gallons of water.

To calculate how much powder is needed for an 80-gallon tank, you can set up a proportion based on the data provided:

1. Start with the known ratio: 3 pounds is to 100 gallons.

2. Set up the equation to find the amount of powder (let's call it X) needed for 80 gallons:

( X , \text{pounds} = \frac{3 , \text{pounds}}{100 , \text{gallons}} \times 80 , \text{gallons} ).

3. By performing the calculation, you multiply:

( X = 3 \times \frac{80}{100} )

( X = 3 \times 0.8 )

( X = 2.4 , \text{pounds} ).

Thus, to properly prepare the solution in an 80-gallon tank