The density of a fish tank is 0.4fish over feet cubed. There are 12 fish in the tank. What is the volume of the tank?

Answer: [tex]30\ ft.^3[/tex]Step-by-step explanation:Given: Density of tank = 0.4 fish over feet cubed. We know that, [tex]\text{Density}=\frac{\text{Mass}}{\text{Volume}}[/tex]Therefore, [tex]\text{Volume of the tank}=\frac{\text{Mass}}{\text{Density}}\\\\\Rightarrow\ \text{Volume of the tank}=\frac{12}{0.4}\\\\\Rightarrow\ \text{Volume of the tank}=30\ ft.^3[/tex]Hence, the volume of the tank = [tex]30\ ft.^3[/tex]