Q9: A gold processor has two sources of gold ore, source A and source B. In order to keep his plantruining, at least 3 tons of ore must be processed each day. Ore from source A costs $ 20/ton toprocess, and ore from source B costs $ 10/ton to process. costs must keep to less than $ 80/ton.Moreover, federal regulations require that the amount of ore from source B can not exceed twicethe amount of ore from A. if ore from A yields 2 oz. of gold per ton and ore from B yield 3 oz. ofgold/ton. Formulate this problem to maximize the amount of gold extracted.

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Answered: Q9: A gold processor has two sources of…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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your natural gas bill is calculated as sum of the fixed monthly cost and a rate per therm of natural gas used. given a usage of 183 therms with a bill of $116.05 for this month and a usage of 129 therms with a bill of $85.80 for last month, determind the fixed monthly cost and rate of your bill with appropriate units.
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3. A manager sells 75 cakes per week at 650 pesos each and he knows that for every 10 pesos increase in the price of cake, he loses a customer. Find the price such that he is able to maximize his weekly revenue.
Apple Company creates new plan to decide the quantity of mobile phone to be produced. There are 3 Phone Types: IPhone 6, IPhone 5 and IPhone 7. Knowing that the profit per unit of each IPhone 6 is $80, IPhone 5 : $60, and IPhone 7 : $20. Market research has indicated that the maximum demand is 200 for IPhone 5. IPhone 6 has to be more than 30% of IPhone 7. The maximum production availability for all mobile phones is 720.The number of work hours available is at most 500 hours. An IPhone 6 requires 26 hours, an IPhone 5 requires 16 hours, and an IPhone 7 requires 18 hours. Formulate this as a linear programming problem.
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6. (a) A man has $4.55 in change composed entirely of dimes and quarters. What are the maximum and minimum number of coins that he can have? Is it possible for the number of dimes to equal the number of quarters? (b) The neighborhood theater charges $1.80 for adult admissions and $.75 for children. On a particular evening the total receipts were $90. Assuming that more adults than children were present, how many people attended? (c) A certain number of sixes and nines is added to give a sum of 126; if the number of sixes and nines is interchanged, the new sum is 114. How many of each were there originally?
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