An environmental engineer wants to evaluate three different methods for disposing of nonhazardous chemical waste: land application,fluidized-bed incineration, and private disposal contract. Use the estimates below to help her determine which has the least cost at /=15.00% per year on the basis of an annual worth evaluation.First CostAOC per YearSalvage ValueLifeLand$-145000$-86000$230004 yearsIncineration$-760000$-70000$2600006 yearsContractO$-132000O2 years

Answered: An environmental engineer wants to…

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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The U.S. government wants to determine whether immigrants should be tested for a contagious disease, and it is planning to base this decision on financial considerations. Assume that each immigrant who is allowed to enter the United States and has the disease costs the country $100,000. Also, assume that each immigrant who is allowed to enter the United States and does not have the disease will contribute $10,000 to the national economy. Finally, assume that x percent of all potential immigrants have the disease. The U.S. government can choose to admit all immigrants, admit no immigrants, or test immigrants for the disease before determining whether they should be admitted. It costs T dollars to test a person for the disease, and the test result is either positive or negative. A person who does not have the disease always tests negative. However, 10% of all people who do have the disease test negative. The government’s goal is to maximize the expected net financial benefits per…
The cost of goods sold for Veltron International last year amounted to $561,000, and the average inventory at cost was $374,000. The published inventory turnover at cost is 6.6. Calculate the inventory turnover at cost, and if it is less than the published rate, calculate the target average inventory at cost (in $). (If the actual turnover is greater than the published rate, enter "above" for target average inventory.) Inventory turnover at cost: Target average inventory at cost:
The following table shows quarterly demand (in thousand units) for a product over 4 years. Year 1 Year 2 Year 3 Year 4 Quarter 1 181 182 167 181 Quarter 2 109 113 116 127 Quarter 3 148 143 158 160 Quarter 4 130 140 155 140 PART A Assuming there is no trend, calculate the seasonal index (S.I.) for each quarter. Report final answers accurate to 4 decimal places. Do not round intermediate calculations. S.I. for Quarter 1 = S.I. for Quarter 2 = S.I. for Quarter 3 = S.I. for Quarter 4 =
Your recipe requires 2 tbsp of chopped garlic. Garlic is sold for $3.29/pound and has a yield percent of 87%. If 1 cup of chopped garlic weighs 4.6 ounces, what is the total cost of the garlic? Question 10 options: $2.12 $0.11 $1.65 $0.14
Find the total net cost of the shipment of materials shown in this figure. ITEM QUANTITY LIST $4.00 each Floor Box 10 -Inch Conduit 250 $2.26 each 250 $4.14 each Single-Pole Key Socket Body Single-Pole Flush Switch 35 $1.27 each DISCOUNT 20% 25% 40% 40%
- (X A Acellus- The Science of Learning X admin120.acellus.com/StudentFunctions/Interface/acellus_engine.html?ClassID=600699069 Gis space cadet a shade of yellow X e omestic Product 10 + The GDP in Brazil is $2.05 trillion. The rate of inflation is 2.5%. If the population of Brazil is 207,833,000, find the per capita GDP in this country. --2023 International Academy of Science. All Rights Reserved. =/Interface/acellus_engine.html?ClassID=600699069# per capita GDP = $ [?] Round to the nearest hundredth. 6 Enter 90°F SL
A certain city's power company charges their residents for electricity usage on a daily basis. There is a basic charge of 11.57 cents. For each day the first 10 kWh cost 4.81 cents per kWh and any additional kWhs are 9.69 per kWh. (A kWh, or kilowatt-hour, is a unit of energy.) (a) Complete the following table using the information provided above. kWhkWh 0 5 10 15 20 cost (dollars)cost (dollars) kWhkWh 25 30 35 40 cost (dollars)cost (dollars) (b) We can define a piecewise function f(x)f(x) where xx is the kWh used in a day and f(x)f(x) is the cost, in dollars. This function would have the form f(x)={g(x)h(x)ififx∈Ax∈Bf(x)={g(x)ifx∈Ah(x)ifx∈B What functions g(x)g(x) and h(x)h(x) make up the piecewise function f(x)f(x)? g(x)=g(x)= for A = h(x)=h(x)= for B = Hint: A and B are intervals. If an interval uses ±∞±∞ write inf or -inf . (c) Using the above function, what is the cost of 26 kWh? dollars. (d) For 3 dollars, what is the maximum kWh usage for one…
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The Country Fields Retirement Community ch $6000/month for a single senior citizen to resi an efficiency apartment with assisted living The facility has operating expenses of $600,00 month. Staffing levels are dependent on the n of residents. Each senior who enters the comm requires additional food, personal care, and s staff time. The estimated cost for each pers $4000 per person per month. (a) How many senior citizen residents does the ity need to have in order to reach the break point? (b) What is the company's annual profit or in they maintain an average residency level senior citizens?

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