Find the cube's mass

Question

One component of a metal sculpture consists of a solid cube with an edge of length 24.5 cm. The alloy used to make the cube has a density of  8050 kg/m^3. Find the cube's mass.

Answer 1

We are given the density in units of m³ so it seems appropriate to convert the length of the side of the cube to meters. 24.5 cm = 0245

Since a cube has all sides equal, the volume of this cube is 0.245³ = 0.245•0.245•0.245 = 0.01470625 cu m

Volume times density = mass so:

(0.01470625 m³)(8050 kg/m³) = 118 kg