Question

There is an aquarium that is shaped as a cube and each edge is 12 centimeters long. It contains 1.40 liters of water. How much more water is needed to fill the aquarium completely

Answer 1

`0.328\ l`

Explanation:

Remember that

`1\ l=1,000\ cm^(3)`

step 1

Find the volume of the aquarium

The volume is equal to

`V=b^(3)`

we have

`b=12\ cm`

substitute

`V=(12)^(3)=1,728\ cm^(3)`

step 2

Convert to liters

`1,728\ cm^(3)=1,728/1,000=1.728\ l`

step 3

Calculate how much more water is needed to fill the aquarium completely

Find the difference between the volume of the aquarium and the water that contains the aquarium

`1.728\ l-1.40\ l=0.328\ l`