Question: use desmos to solve the following problems i will...

Use Desmos to solve the following problems – I will expect to see screen shots. Part of the challenge is to find a representative window. I will post a few videos to help with this.

4. Soybean meal is 16% protein and corn meal is 9% protein. Use systems of equations to determine how many pounds of each should be mixed to get a 350 lb mixture that is 12% protein? You may solve graphically using Desmos