When 20 cubic centimeters of water was added to a graduated cylinder containing sand the water rose to 42 cubic centimeters What is the volume of the sand in cubic centimeters?

Answer 1

Here is the information you are given and a corresponding equation demonstrating the relationship between the given information and the unknown.

Vtotal = Vwater + Vsand = 42cm3

Here is the given equation rearranged (by subtracting the volume of water from both sides) to target the unknown information (volume of sand).

Vsand = Vtotal - Vwater

Plugging in the given info to the equation yields your answer.

Vsand = 42 - 20

Vsand = 22cm3