Question

Deluxe coffee is to be mixed with regular coffee to make at least 59pounds of a blended coffee. The mixture must contain at least 15pounds of deluxe coffee. Deluxe coffee costs $7per pound and regular coffee $5 per pound. How many pounds of each kind of coffee should be used to minimize costs?

Answer 1

Use the minimum amount of deluxe coffee allowed, and for the rest, use regular coffee.