50 points if right (3-part question)
A large tank is partially filled with a solution. The tank has a faucet that allows solution to enter the tank at a rate of 16 3/4 liters per minute. The tank also has a drain that allows solution to leave the tank at a rate of 19 4/5 liters per minute. (A)What expression represents the change in volume of solution in the tank in 1 minute? (b) What is the change in volume of the solution after 15 seconds? Show necessary work. (c)What does the change in volume after 15 seconds mean in the real world? Answer in complete sentences.

C) What change in the volume of solution in the tank after 15 seconds means is that there is a decrease in the volume of solution in the tank by 13/15 liters per minute.

What is the rate of change?

The given parameters of the solution in the tank are;

The rate at which the solution enters the tank, V = 16³/₄ liters per minute

The rate at which the solution leaves the tank = 19⁴/₅ liters per minute

(a) The expression that represents the change in volume in the tank is given as follows;

16³/₄ - 19⁴/₅ = -3⁷/₁₅ liters per minute

b) We want to find the change in volume of the solution after 15 seconds.

15 seconds is equal to 0.25 minutes or 1/4 minutes

Therefore, the change in the volume after 15 seconds is;

-3⁷/₁₅ * 1/4 = -13/15 liters per minute

c) The change in the volume of solution in the tank after 15 seconds is a decrease in the volume of solution in the tank by 13/15 liters per minute.

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