To calculate the number of fish that can fit in a fish tank, you can use the formula:
Number of Fish = Volume of Tank × Density
In this case, the volume of the fish tank is 40 cubic feet, and the density is 0.4 fish per cubic foot. Plugging in these values, we get:
Number of Fish = 40 cubic feet × 0.4 fish/cubic foot
Now, performing the multiplication:
Number of Fish = 16 fish
Therefore, the fish tank can accommodate 16 fish. Make sure to consider other factors, like the species of fish and their individual space requirements, to ensure a healthy environment in the tank.