14 liters of water is required to fill the tank if William uses 200 marbles.
Arithmetic operations can also be specified by the subtract, divide, and multiply built-in functions.
When the tank is filled with 85 marbles, 20.9 liters of water are required to fill the tank.
If the tank can hold 26 liters, and William must add 20.9 liters of water, then the marbles must take up the remaining volume.
Therefore, we find the total volume of the marbles by subtracting 20.9 L from 26 L:
⇒  26 - 20.9 = 5.1
The volume that all 85 marbles take up is 5.1 liters, we can calculate the volume that each marble takes up by dividing 5.1 liters by 85 marbles:
So, the volume of each marble = 5.1/85 = 0.06
So, if William wants to use 200 marbles, the volume that will cover :
⇒ 200×0.06 = 12
So, in 26 liters of the tank, marbles will take volume = 12
So, water will be required to fill the tank = 26 - 12 = 14
Thus, 14 liters of water is required to fill the tank if William uses 200 marbles.
Learn more about Arithmetic operations here:
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