Question

A solid object has a mass of 30 grams and a volume of 10 cm3.

Answer 1

To find the density of an object, you need to use the equation: D = M/V. This is density equals mass over volume.

Mass: 30 g
Volume: 10 cm3

30/10 = 3 

Density: 3 g/cm3

Answer 2

Answer: The density of the object is equal to $3g/cm^3$

Explanation:

Density of an object is defined as the ratio of its mass and volume. The chemical equation representing density of an object is:

$\text{Density of an object}=\frac{\text{Mass of an object}}{\text{Volume of an object}}$

We are given:

Mass of an object = 30 grams

Volume of an object = $10cm^3$

Putting values in above equation, we get:

$\text{Density of an object}=\frac{30g}{10cm^3}=3g/cm^3$

Hence, the density of the object is equal to $3g/cm^3$