Using linear function concepts, it is found that the volume of each marble is of 0.05 liters.
A linear function is modeled by:
y = mx + b
In which:
The linear function that gives the volume of water, when n marbles are inserted into the tank, is given by:
w = 32 - 0.05n
The slope of -0.05 means that for each marble inserted, there are 0.05 liters less for water, hence the volume of each marble is of 0.05 liters.
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