Answer :
Final answer:
The density of the cube is found by dividing its mass (66.9 g) by its volume (15.625 cm³), which gives a density of 4.3 g/cm³.
Explanation:
To calculate the density of the cube, we first determine its volume. Since the edge of the cube is 2.5 cm, we use the formula for the volume of a cube, which is the edge length cubed (V = s³). Therefore, the volume is 2.5 cm x 2.5 cm x 2.5 cm = 15.625 cm³. Next, we divide the mass of the cube (66.9 g) by its volume (15.625 cm³) to find its density. The density is therefore 66.9 g / 15.625 cm³ = 4.3 g/cm³.
The correct answer is B) 4.3 g/cm³.
