- A ratio is a measure of one value divided by another value
- Therefore, the ratio of an object's mass to volume is a measure of its mass divided by its volume

- The ratio of an object's mass to volume is a measure of its mass divided by its volume
- Density is a measure of mass of an object divided by volume
- Hence, the ratio of an object's mass to its volume is a measure of the object's density

Therefore, the ratio of an object's mass to its volume is a measure of the object's density
Question: The ratio of an object's mass to its volume is its
Context: - Density is a measure of mass of an object divided by volume 
- A ratio is a measure of one value divided by another value