The following table shows the amount spent by four U.S. airlines to fly one available seat 1 mile in the eecond quarter of 2014.1Set up a nystem and then solve using technology. HINT (See the technology note accompanying Example 1.)UnitedContinentalAirlineAmericanJetBlueSouthwestCost ()14.914.611.912.4Suppose that, on a 3,000-mile New York to Los Angeles flight, United Continental, American, and Southwest flew a total of 255empty seats, costing them a total of $109,410. If United Continental had three times as many empty seats as Anmerican, howmany empty seats did each of these three airlines carry on its flight?United Continentalempty seatsArnericanempty seatsSouthwestempty seatsNeed Help? Read

Answered: Image /qna-images/answer/e2c3d97d-d39d-4ae0-b7a2-753118fd81a9.jpg

Answered: The following table shows the amount…

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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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…
b) Problem: Calculate the 7% tax on a purchase of $25. Solution: 10% of $25 is $2.50, so 5% is $1.25. 1% of $25 is 25 cents, so 2% is 50 cents. This means 7% is $1.25 plus 50 cents, which $1.75. ht Rotate Markup Seareh 7% $25 = 29/1 ol ebriogzTIO tont yems as WEI0 () erit bes yen 21 worle of 29lsnsbn balsdel ylhisn6 (anlog Al (atob c) Problem: What is 110% of 62? Solution: 100% of 62 is 62 and 10% of 62 is 6.2, so all together it's 68.2. 110% 62% D Messages OCT 26 MacBook Air చిక ి.
Gas mileage actually varies slightly with the driving speed of a car (as well as with highway vs. city driving). Suppose your car averages 29 miles per gallon on the highway if your average speed is 48 miles per hour, and it averages 26 miles per gallon on the highway if your average speed is 65 miles per hour. Answer parts (a) and (b) below. a. What is the driving time for a 2300-mile trip if you drive at an average speed of 48 miles per hour? What is the driving time at 65 miles per hour? The driving time at 48 miles per hour is hours. (Type an integer or decimal rounded to two decimal places as needed.) The driving time is at 65 miles per hour is (Round to two decimal places as needed.) b. Assume a gasoline price of $4.43 per gallon. What is the gasoline cost for a 2300-mile trip if you drive at an average speed of 48 miles per hour? What is the gasoline cost at 65 miles per hour? The gasoline cost at 48 miles per hour is $ (Round to two decimal places as needed.) hours. The…
1 1.48 1.31 1.14 8.97 8.8 a) The cost to mail a 3.2 ounce first-class letter. Answer: b) The cost to mail a 4 ounce first-class letter. Answer: B Note: You can earn partial credit on this problem. Preview My Answers Submit Answers 2 The graph above shows the cost of mailing a first-class retail flat letter (for example, a letter in a manila envelop), c(x), as a function of its weight, x, in ounces. Use the graph of the function to find: Show me another 3 4 5
2. Write a program that models a cashier at a store. The program will take two numbers as input. Firstly, the cost of an item ($20.00 or less). Secondly, the amount of money given to the cashier ($20.00 or less). The program should output the change given in 10 dollar bills, 5 dollar bills, 1 dollar bills, quarters, dimes, nickels, or pennies. You should output the highest denominations possible. For example, if the item costs $5.20 and the cashier is given $10 then the change should be 4 dollar bills 3 quarters 1 nickle

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