Solve with complete solution

INSTRUCTION: Construct the Mathematical Model and show the complete solution. T A mixture of food A and food B is to be made so that it contains at least 45 ounces of nutrient N1 and 40 ounces of nutrient N2. The cost per pound of A is Php203.50 and each pound of A contains 1 ounce of nutrient N1 and 2 ounces of nutrient N2. Food B costs Php406.90 per pound and each pound of B contains 1.5 ounces of nutrient N1 and 0.5 ounce of nutrient N2. If the weight of the mixture must not exceed 40 pounds, how many of each food should be used so that the total cost is a minimum