Pure gasoline has an energy density of 115,600 BTU per gallon while ethanol has an energy density of 75,670 BTU per gallon. If gasoline costs $3.50 per gallon, (a) what would the cost of pure ethanol have to be in order for the energy costs of the two fuels to break even? (b) What would the price of E85 (85% ethanol, 15% gasoline) have to be for its energy cost to be the same as that of pure gasoline?

Pure gasoline has an energy density of 115,600 BTU per gallon while ethanol has an energy density of 75,670 BTU per gallon. If gasoline costs $3.50 per gallon, (a) what would the cost of pure ethanol have to be in order for the energy costs of the two fuels to break even? (b) What would the price of E85 (85% ethanol, 15% gasoline) have to be for its energy cost to be the same as that of pure gasoline?

Managerial Economics: A Problem Solving Approach

5th Edition

ISBN:9781337106665

Author:Luke M. Froeb, Brian T. McCann, Michael R. Ward, Mike Shor

Publisher:Luke M. Froeb, Brian T. McCann, Michael R. Ward, Mike Shor

Chapter3: Benefits, Costs, And Decisions

Section: Chapter Questions

Problem 8MC

See similar textbooks

Similar questions

Sales of bottled water in the United States totaled 34.0 gallons per person in 2014. Evian, a high-quality natural spring water, costs about 60¢ per bottle, while a local brand of purified municipal water may cost only 25¢ per bottle. On average, a local municipal water utility may provide drinkable tap water for $2.90 per 1000 gallons. If the average person drinks two bottles of water per day or uses 5 gallons per day to obtain the same amount of water from the tap, what are the present worth values per person for 1 year of drinking tap water versus bottled water using (a) Evian, and (b) local-brand bottled water? Use an interest rate of 6% per year, compounded monthly, and 30 days per month.
Focus on the difference between feasible alternatives. Insulated concrete forms (ICF) can be used as a substitute for conventional wood framing in building construction. Heating and cooling bills will be about 50% less than in a similar wood-framed building in upstate New York. An ICF home will be approximately 10% more expensive to construct than a wood-framed home. For a typical 2,000 ft2 home costing $120 per ft2 to construct in upstate New York and costing $200 per month to heat and cool, how many months does it take for a 2,000 ft2 ICF home to pay back its extraconstruction cost?
Your car gets 29 miles per gallon (mpg) at 60 miles per hour (mph) and 25 mpg at 70 mph. At what speed should you make a 525-mile trip: (a) If gas costs $3 per gallon and your time is worth $18/hr? (b) If gas costs $4 per gallon and your time is worth $12/hr? (c) If gas costs $5 per gallon and your time is worth $9/hr? (d) Build a spreadsheet to calculate the total trip cost for gas costs of $2, $3, $4, and $5 and values of time of $6, $9, $12, $15, and $18 per hour. Do two tables: one at 60 mph and one at 70 mph.
Chatham Automotive [should/should not] replace the forklifts now since the minimum total EAC for the electric forklifts is $ [blank] which is [lower/higher] than $ [blank], the minimum total EAC for the propane forklifts.
A diesel engine uses a Type A filter and high-grade lubricating oil costing $5.50 per liter. With this filter, the oil and filter have to be changed every 500 hours of operation, and 5 liters of oil have to be added every 100 hours. This filter cost $148 a piece.Eighty liters of oil fill the engine. Another type, filter B, costing $120 may be used with a lower grade oil costing $4.80 per liter. However, if this filter is used, the oil andfilter have to be changed every 300 hours, and 10 liters are added after every 150 hours the engine is used. Which type of filter and oil would you recommend? Kindly show your complete solutions. Thank you
The cost of a health care project is $5000 per year. The project will start immediately and will run for a total of eight years. Somebody tells you that the total cost of the project is approx. $37360. This person time discounted using a rate of 1% per year time discounted using a rate of 2% per year time discounted using a rate of 3% per year time discounted using a rate of 4% per year
A chemical engineer is considering two sizes of pipes for moving distillate from a refinery to the tank farm. A small pipeline will cost less to purchase (including valves and other appurtenances), but will have a high head loss and, therefore, a higher pumping cost. The small pipeline will cost $1.7 million installed and have an operating cost of $12,000 per month. A larger-diameter pipeline will cost $2.1 million installed, but its operating cost will be only $8000 per month. Which pipe size is more economical at an interest rate of 1% per month on the basis of an annual worth analysis? Assume the salvage value is 10% of the first cost for each pipeline at the end of the 10-year project.
Two automatic systems for dispensing maps are being compared by the state highway department. The accompanying breakeven chart of the comparison of these systems (System I vs. System II) shows total yearly costs for the number of maps dispensed per year for both alternatives. Answer the following questions. (a) What is the fixed cost for System I? (b) What is the fixed cost for System II? (c) What is the variable cost per map dispensed for System I? (d) What is the variable cost per map dispensed for System II? (e) What is the breakeven point in terms of maps dispensed at which the two systems have equal annual costs? (f) For what range of annual number of maps dispensed is System I recommended? (g) For what range of annual number of maps dispensed is System II recommended? (h) At 3000 maps per year, what are the marginal and average map costs for each system?
Five thousand new smart camera systems are needed annually to expand the security surveillance of roads, buildings, airports, parks, etc. in a large metropolitan area. The system components can be obtained in one of three ways: (1) Make them in one of three plants partially owned by the government; (2) Buy them off the shelf from the one and only manufacturer; or (3) Contract to have them made to specifications by a vendor. The estimated annual cost for each alternative is dependent upon specifics of the plant, the producer, or the vendor. The information below details the alternative, a probability of occurrence, and the estimated annual cost. (a) Construct and solve a decision tree to determine the least-cost alternative to provide the components. (b) Once you have chosen the alternative on the tree, use a spreadsheet to determine the change in probability that the Buy alternative requires to make it equally attractive with the chosen alternative. Assume that the probability change…
The landfill for a particular city in Laguna has an area of 30 acres available for receiving waste from the city of 40,000 people who generate 25,000 tons of municipal solid waste (MSW) per year. If the fixed cost of the landfill is ₱3,000,000 per year and the operating cost is ₱120 per ton, then the landfill must charge ₱_______ per ton of MSW to break even. *Fill in the blank*
California Gardens, Inc., prewashes, shreds, and distributes a variety of salad mixes in 2-pound bags. Doug Voss, Operations VP, is considering a new Hi-Speed shredder to replace the old machine, referred to in the shop as "Clunker." Hi-Speed will have a fixed cost of $87,000 per month and a variable cost of $1.20 per bag. Clunker has a fixed cost of only $31,000 per month, but a variable cost of $1.70. Selling price is $2.40 per bag. Part 2 a) What is the crossover point in units (point of indifference) for the processes? The crossover point is 112000 units. (Round your response to the nearest whole number.) Part 3 b) What is the monthly profit or loss if the company changes to the Hi-Speed shredder and sells 90,000 bags per month? The monthly profit or loss if the company changes to the Hi-Speed shredder and sells 90,000 bags per month is $enter your response here. (Round your response to the nearest dollar and include a minus sign if necessary.)
Rho Merchandising supplies T-shirts to AK Mart. Currently, Rho orders T-shirts from varioussuppliers. One of the T-shirts is ordered in batches of 150 units. It has been estimated that an annualdemand for T-shirts is 25,000 pieces. Furthermore, carrying cost is estimated to be P10 per T-shirt peryear. For the other policy to be optimal, determine what the ordering cost would have to be.