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A new highway is to be constructed. Design A calls for a concrete pavement costing ?$90 per foot with a 12?-year ?life; two paved ditches costing ?$4 per foot? each; and four box culverts every? mile, each costing ?$10,000 and having a 12?-year life. Annual maintenance will cost $1,600 per? mile; the culverts must be cleaned every three years at a cost of $550 each per mile. Design B calls for a bituminous pavement costing $45 per foot with a 6?-year life; two sodded ditches costing ?$1.55 per foot? each; and two pipe culverts every? mile, each costing ?$2,150 and having a 6?-year life. The replacement culverts will cost $2,450each. Annual maintenance will cost $2,700 per? mile; the culverts must be cleaned yearly at a cost of $215 each per? mile; and the annual ditch maintenance will cost ?$1.45 per foot per ditch.
Compare the two designs on the basis of equivalent worth per mile for a 12?-year period. Find the most economical design on the basis of AW and PW if the MARR is 12?%per year.
a. Find a 90% confidence interval to estimate the difference in the percent of students who pass using the two methods.
Howell Petroleum is considering a new project that complements its existing business. The machine required for the project costs $3.9 million. The marketing department predicts that sales related to the project will be $2.6 million per year for the n..
Suppose firms in an industry regard certain types of moderately skilled labor and advanced automation machinery as substitute goods with a cross-price elasticit
Find out industry's profit-maximizing cost and quantity. Illustrate what is its profit. industry's production manager claims that industry's average cost of production in minimized at an output of 40 units.
If a competitive firm's marginal profit is positive at an output of 1000 units,
If the interest from the endowment is to fund 100 students each year in the amount of $10,000 each
Having filled out the above table, we now consider the number of workers that will be hired by the profit-maximizing firm. In the table below, fill in Quantity
(Figure: Corn and Watches in the United States and Canada) Referring to the graphs, we see that _____ has the comparative advantage for corn and _____ has the comparative advantage for watches.
The additional output produced by a firm as a result of hiring another worker is called the marginal product of labor. The amount by which a firm’s revenue will increase as a result of hiring one more worker is called the marginal revenue product of ..
Assume to John Smith gets promoted to a job to cause two changes to occur simultaneously: John earns a higher wage also safer environment
Consider our discussion about the rising cost of healthcare services; what are the most effective ways to control these costs? Try to think of several alternative ways to do so, and then compare them in terms of the criteria of effectiveness, efficie..
Suppose c = wL + rK and q = L 1/3K 1/4 and perfect competition in all markets. Find the demand for labor and capital and the supply of q. If p = 8, w = 1 and r = 2, find the quantity supplied and the profits.
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