Fine Foods Ltd has the capacity to produce a maximum of 150kgs of its gourmet antipasto mix per day, which it sells for $35 per kilogram. Given the customer order profile for the next two days, the operations manager advises that today Fine Foods should produce either one days worth of product a maximum of 80kgs; or two days worth of product at least 130kgs.

Let denote the number of kilograms produced in a day. Define the constraint(s) that ensures Fine Foods production will be consistent with the operations managers requirements. You can define additional decision variables if necessary.