finding the density of a moon

Question

Jupiter’s moon, Europa, has a radius of 3,130 km and a mass of 4.8 × 10²² kg. Calculate

the density of Europa. Remember, density is defined as the mass per unit volume. I’ve

worked out the volume of Europa for you already, it is 1.6 × 10¹⁹ m³.

Answer 1

You pretty much already got it. Just one more step.

Density = mass / volume = 3 x 10^3