Answer:
The answer is
2.50 g/mL
Explanation:
The density of a substance can be found by using the formula
[tex]density = \frac{mass}{volume} \\[/tex]
From the question
mass of rock = 50 g
volume = final volume of water - initial volume of water
volume = 50 - 30 = 20
volume = 20 mL
The density of the rock is
[tex]density = \frac{50}{20} = \frac{5}{2} \\ [/tex]
We have the final answer as
2.50 g/mL
Hope this helps you
