Density is the ratio of a substances mass to its volume. A 2/5 cubic foot container of oil has a mass of 22 pounds. What is the density in pounds per cubic foot, of the oil?

1 answer

Density is defined as the ratio of mass to volume. In this case, the mass of the oil is given as 22 pounds and the volume is given as 2/5 cubic foot.

Therefore, the density of the oil is calculated as:

Density = Mass / Volume

Density = 22 pounds / (2/5) cubic foot

To divide by a fraction, we multiply by its reciprocal:

Density = 22 pounds * (5/2 cubic foot)

Simplifying:

Density = 110 pounds / 2 cubic foot

Final Answer: The density of the oil is 55 pounds per cubic foot.