6. A bakery wants to produce 80 donuts, which in the process

It requires 3 ingredients, namely sugar, flour and milk. Cost required from

The three components of the ingredients are Rp. 100 for sugar, Rp. 200 for flour, and Rp. 300

for milk with a total cost of Rp. 16,000. The requirement for making donuts is that the amount of flour must be 2 times the amount of milk. Based on the information above, determine:
a. The system of linear equations
b. how much sugar, flour and milk are needed to make the donuts.

Use the CRAMERS method.