Question

What is the volume of a 15.0 kg cube with edge length 12.0 cm if it has a density of 2.70 g/mL?

Answer 1

Just need to know it is a Cube, and side length is 12.0 cm...
Cube volume is side cubed

Answer 2

so 12.0^3 ?

Answer 3

right

[12.0 cm]^3 = 12.0^3 cm^3

Answer 4

But then when dividing the mass by the volume we do not get the density of 2.70 g/mL ?

Answer 5

There is too much information in this problem, and the information is inconsistent.
A cube with a 12.0-cm edge has a volume of 1728 cm^3.

If it has a mass of 15.0 kg, then the density is
density = mass/volume = (15.0 kg)/(1728 cm^3) = 8.68 g/mL

The problem stated the density is 2.70 g/mL