Each pound of American blend coffee requires 12 ounces of Colombian beans and 4 ounces of Dominican beans, while a pound of British blend coffee uses 8 ounces of each type of bean. Profits for the American blend are $2.00 per pound, and profits for the British blend are $1.00 per pound. What is the Columbia bean constraint?

The question is incomplete.

The correct question is:

The production planner for Fine Coffees, Inc. produces two coffee blends: American (A) and British (B). He can only get 300 pounds of Colombian beans per week and 200 pounds of Dominican beans per week. Each pound of American blend coffee requires 12 ounces of Colombian beans and 4 ounces of Dominican beans, while a pound of British blend coffee uses 8 ounces of each type of bean. Profits for the American blend are $2.00 per pound, and profits for the British blend are $1.00 per pound

What is the constraint for Dominican beans?

12A + 8B ≤ 4,800

Explanation:

Two of his resources are constrained and Columbia beans is one of them which he gets at most 300pounds which is 4800 ounces per week.

Therefore the objective function is:

A + B = Z

The objective function is to maximize profit of of 2 dollars per pound of A and 1 dollar per pound of B.

=2 A + B

The Columbia bean constraint is:

The production planner uses 12 ounces of A and 8 ounces of B.

Therefore the maximum available is;

12A + 8B ≤ 4,800

answer: marginal utility of the fourth brownie is 0.

explanation: marginal utility is the addtional utility gained from the consumption of one more unit of a good. it is given by,

so, marginal utility at the 4th unit will be given by

since, the values are not given here, you can simply find marginal utility at fourth unit by subtracting total utility at 3rd unit from total utility at 4th unit.