Answer:
8.5 g/cm³
Explanation:
The density of a substance can be found by using the formula
[tex]density = \frac{mass}{volume} \\[/tex]
From the question we have
[tex]density = \frac{340}{40} = \frac{17}{2} \\ [/tex]
We have the final answer as
8.5 g/cm³
Hope this helps you
