Respuesta :

Answer:

The answer is

7.80 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 steel = 156 g

volume = 20 mL

The Density is

[tex]Density = \frac{156}{20} = \frac{39}{5} [/tex]

We have the final answer as

7.80 g/mL

Hope this helps you