1.Three water purification facilities can handle at most 10 million gallons in a certain time period. Plant 1 leaves 20% of certain impurities, and costs P20,000 per million gallons. Plant 2 leaves 15% of these impurities and costs P30,000 per million gallons. Plant 3 leaves 10% impurities and costs P40,000 per million gallons. The desired level of impurities in the water from all three plants is at most 15%. If Plant 1 and Plant 3 combined must handle at least 6 million gallons, find the number of gallons each plant should handle so as to achieve the desired level of purity at minimum cost.

Decision variables:

X1 = the number of million gallons of water from Plant 1

X2 = the number of million gallons of water from Plant 2

X3 = the number of million gallons of water from Plant 3

LP Model

Min 20000X1 + 30000X2 + 40000X3

Subject to:

X1 +X2 +X3

.2X1 + .15X2 + .1X3

X1+X3 >=6

X1, X2, X3 >=0

2. A marketing research group conducting a telephone survey must contact at least 150 wives and 120 husbands. It costs P100 to make a daytime call and (because of higher labor costs) P150 to make an evening call. On average, daytime calls reach wives 30% of the time, husbands 10% of the time, and neither of these 60% of the time, whereas evening calls reach wives 30% of the time, husbands 30% of the time, and neither of these 40% of the time. Staffing considerations mean that daytime calls must be less than or equal to half of the total calls made. How many should be interviewed at each period to minimize the cost of completing the survey?

QUESTION 4 donates 2-carbon units during fatty acid synthesis. O acetoacetate O malonyl-CoA O oxaloacetate biotin QUESTION 5 A cell's [NADPH/NADP * ] ratio is very low: what would you expect to happen? O B-oxidation is inhibited ketone body synthesis is inhibited O triglyceride synthesis is inhibited Fatty acid synthesis is inhibited1:04 Question 6 Not yet answered Marked out of 0.50 What is meant by the term 'quorum?' Select one: A. A 'quorum' refers to the minimum number of 'qualifying persons' required in order to validly conduct business at a O meeting. B. A 'quorum' refers to a meeting that is invalid because sufficient notice has not O been provided. C. A 'quorum' refers to the maximum number of persons who may attend a O meeting. D. A 'quorum' refers to a meeting that lacks a chairperson. O Clear my choice AQuestion 39 Not yet answered Marked out of 1.00 P Flag question "To provide better guidelines on standard cost accounting practices", is one of the objectives of a manufacturing firm that can be achieved through O a. Cost Accounting Standards O b. Generally Accepted Accounting Principles O . Charted Accounting Institute Standards O d. International Financial Reporting Standards\fQuestion 24 2 pts Acyl CoA Synthetase, is an enzyme that requires ATP to function and yet it can run backwards making ATP! Why can acyl-CoA synthetase make ATP, when it consumes ATP? The thioester bond on Acyl CoA provides energy for ATP production. O The phosphate group on the CoA can provide energy for hydrolysis. O The enzyme actually favors the reverse reaction (positive AG) O There is a second enzyme that uses ATP to un-charge the acyl CoA. O None of the answers provided answers the questions