Suppose That Three Water Purification Facilities Can Handle at Most

question 104

Multiple Choice

Suppose that three water purification facilities can handle at most 22 million gallons in a certain time period. Plant 1 leaves 20% of certain impurities, and costs $20,000 per million gallons. Plant 2 leaves 15% of these impurities and costs $30,000 per million gallons. Plant 3 leaves 10% impurities and costs $40,000 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 18 million gallons, find the number of gallons each plant should handle so as to achieve the desired level of purity at minimum cost. Find the minimum cost.

• A)Minimum cost is $480,000 with plants 1 and 3 each handling 8,000,000 gallons and plant 2 handling 0 gallons.
• B)Minimum cost is $600,000 with plants 1 and 3 each handling 9,000,000 gallons and plant 2 handling 4,000,000 gallons.
• C)Minimum cost is $660,000 with plants 1 and 3 each handling 10,000,000 gallons and plant 2 handling 2,000,000 gallons.
• D)Minimum cost is $600,000 with plants 1 and 3 each handling 10,000,000 gallons and plant 2 handling 0 gallons.
• E)Minimum cost is $540,000 with plants 1 and 3 each handling 9,000,000 gallons and plant 2 handling 0 gallons.

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Gender

The range of characteristics pertaining to, and differentiating between, masculinity and femininity, often based on social and cultural meanings.

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The biological categorization of organisms as male or female, often based on reproductive functions, and human sexual activity and interaction.

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A belief or expectation that an individual holds about a future event that manifests because the individual holds it.