Question

You have a rock with a volume of 15 cm³ and a mass of 45 g. What is the density of the rock?

A) 3 g/cm³
B) 15 g/cm³
C) 30 g/cm³
D) 45 g/cm³

Answer 1

The density of a rock with a mass of 45 g and a volume of 15 cm³ is calculated using the formula density = mass/volume, which gives us a density of 3 g/cm³.

Step-by-step explanation:

To find the density of the rock, we use the formula for density, which is:

Density = mass/volume

According to the information provided:

• Mass of the rock = 45 g
• Volume of the rock = 15 cm³

Using these values:

Density = 45 g / 15 cm³ = 3 g/cm³

Therefore, the density of the rock is 3 g/cm³, which corresponds to option A) 3 g/cm³.

Answer 2

• A) 3 g/cm³

Step-by-step explanation:

Given that :

You have a rock with a volume of 15 cm³ and a mass of 45 g.

To Calculate :

the density of the rock

Formula used :

`\: { \underline{ \boxed{\rm {Density = (Mass)/(Volume) }}}}`

Plugging the required value in the above formula,

`\rm Density = (45)/(15)`

`\rm Density = 3 \: g/cm^3`

Hence, the density of the rock is 3 g/cm³.

Option (A) is the required Answer.