Question

The number of goldfish in a tank is 22, and the volume of the tank is 56 cubic feet. What is the density of the tank?

0.34 goldfish per cubic foot
0.39 goldfish per cubic foot
1.41 goldfish per cubic foot
2.55 goldfish per cubic foot

Answer 1

To calculate the density of goldfish in the tank, we use the formula for density:

\[
\text{Density} = \frac{\text{Number of goldfish}}{\text{Volume of the tank}}
\]

Given:
- Number of goldfish = 22
- Volume of the tank = 56 cubic feet

Substituting the values into the formula:

\[
\text{Density} = \frac{22 \text{ goldfish}}{56 \text{ cubic feet}} \approx 0.392857 \text{ goldfish per cubic foot}
\]

Rounding to two decimal places, this is approximately:

\[
0.39 \text{ goldfish per cubic foot}
\]

Thus, the answer is:

**0.39 goldfish per cubic foot**.