SELF test 15. Seastrand Oil Company produces two grades of gasoline: regular and high octane. Bo gasolines are produced by blending two types of crude oil. Although both types of crud oil contain the two important ingredients required to produce both gasolines, the percent age of important ingredients in each type of crude oil differs, as does the cost per gallon. The percentage of ingredients A and B in each type of crude oil and the cost per gallon are shown. Crude Oil Cost Ingredient A Ingredient B Crude oil I N - $0.10 20% 60% is 60% $0.15 50% 30% ingredient B Each gallon of regular gasoline must contain at least 40% of ingredient A, whereas each gallon of high octane can contain at most 50% of ingredient B. Daily demand for regular and high-octane gasoline is 800,000 and 500,000 gallons, respectively. How many gallons of each type of crude oil should be used in the two gasolines to satisfy daily demand at a minimum cost? 16. The Ferguson Paper Company produces rolls of paper for use in adding machines, desk calculators, and cash registers. The rolls, which are 200 feet long, are produced in widths of 11/2, 21/2, and 312 inches. The production process provides 200-foot rolls in 20191015_125306.jpg 20191015_123850.jpg 20191015