Contemporary Engineering Economics (6th Edition)
Contemporary Engineering Economics (6th Edition)
6th Edition
ISBN: 9780134105598
Author: Chan S. Park
Publisher: PEARSON
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Chapter 6, Problem 34P
To determine

Calculate the number of ride.

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Jenny Tanaka wants to buy a new car, and the annual gasoline expense is a major consideration. Her present car gets 25 miles per gallon (mpg), and she is considering purchasing a new car that gets 40 mpg. Jenny now drives about 12,000 miles per year and pays $3.25 per gallon of gasoline. She therefore calculates an annual gasoline consumption of 480 gallons for her 25 mpg car (12,000 miles/25 mpg) compared to 300 gallons consumed per year for the 40 mpg car (12,000 miles/40 mpg). Since driving the higher- mileage car would use 180 gallons less per year, Jenny estimates the new car will save her $585 in gasoline expense per year (180 gallons 3 $3.25 per gallon). Suppose Jenny buys the 40 mpg car. According to economic theory, Jenny's actual annual savings on gasoline will be 7 1 C 1 U C VI 10 V K W S TACAZEC 10 GUNS TOMBER 2 than her initial estimate of $585.
Suppose the cost of purchasing euros (EUR) and Canadian dollars (CAD) at the airport are given by the following bid / ask price: EUR 1 = USD 1.32 / 1.47 CAD 1 = USD 0.85 / 0.97   How much USD is required to purchase EUR 2,000?  How much USD is required to purchase CAD 1,500?  How much USD will you get if you’d like to sell EUR 500 to the airport’s currency exchange store?  How much USD will you get if you’d like to sell CAD 500 to the airport’s currency exchange store?  Calculate the percent spread or margin for USDEUR.  Calculate the percent spread or margin for USDCAD.
Electricity is produced with water according to the function: E = 5 + 5W-1W² where E = kilowatt-hour and W = gallons of water. Water costs $0.02 per gallon. Electricity can be sold on the grid for $0.10 per kWh (kilowatt-hour). How much water should be purchased?
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