Mixture of two solutions

Mixture of two salt solutions

What is the amount of salt in the tank at any time t?

Step 1: Set up a model

Step 1: Set up a model

Step 1: Set up a model

The model is

Step 2: Solve the model (DE)

Step 2: Solve the model (DE)

Step 2: Solve the model (DE)

Step 2: Solve the model (DE)

Step 2: Solve the model (DE) The solution is

Example

Solution

Solution

Solution

Solution

The model is

Solution

Solution

Solution