Question

what is the volume of this rock? 1 cm³ 5 cm³ 10 cm³ 100 cm³

Explanation:

Step1: Note initial water volume

The initial volume of water in the graduated - cylinder is 30 cm³.

Step2: Note final water volume

The final volume of water in the graduated - cylinder after adding the rock is 40 cm³.

Step3: Calculate rock volume

The volume of the rock is equal to the increase in the volume of water. So, $V = 40 - 30$.

Answer:

10 cm³