A company finds it can produce 20 heaters for $6000, while producing 30 heaters costs $8700. Express the cost, y, asa linear function of the number of heaters, X.Express the cost, y, as a linear function of the number of heaters, x.y=0(Type an expression using x as the variable. Simplify your answer. Do not factor.)

Answered: Image /qna-images/answer/6c78f158-c887-4196-ba81-0621a5f45bb0.jpg

Answered: A company finds it can produce 20…

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 downtown parking lot charges $5 per hour for the first 2 hours, then $2.50 per hour after that. Which equation(s) describes the total cost y as a function of the hours x? 1. Y = 5x + 2.5(x-2) 2. Y = 5x + 2.5x 3. Y = 5x for 2 hours or less, then Y =10 + 2.5(x-2) for over 2 hours 4. Y = 5x up to 2 hours then Y = 5x + 2.5x for over 2 hours
John has to type a 2,000-word business research report, and he types at a rate of 40 words per minute. The function R (m) = ()- 2,000 - m can be used to calculate the number of minutes required to finish 40 after m minutes of typing. What is the domain for function R in this context? Select one answer. O A. m 50 O D. All real numbers Files DELL
2. In 2012, the campus print center purchased a multi-function printer/copier for $12600, and a high capacity printer for $11000. The resale value of the multi-function machine is decreasing by $1800 per year and the resale value of the high capacity machine is decreasing by $1000 per year. a. Write an equation that gives the resale value, y, ofthe b. Write an equation that gives the resale value, y, of the multi-function machine x years after 2012. high capacity machine x years after 2012. c. Use your equations to determine the year in which the resale values of the two machines will be equal.
The height of Jocelyn's rocket, in feet, as a function of time, in seconds, is modeled by the equation J(t)=-16t^2+180t. The height of Kelly's rocket, in feet, as a function of time, in seconds, is modeled by the equation K(t)=-16t^2+240t. a. Evealuate J(3) b. Who would win a rocket launching contest by having the highest flying rocket? c. How much more time did it take for the second rocket to hit the ground? d. If we launch Kelly's rocket from a height of 12 feet how does that change Kelly's function K(t)?
Billy currently has $50 in his vacation fund. He earns $35 each week mowing lawns and spend $14 of the $35 for entertainment. He puts the rest in his vacation fund. Which function can be used to determine a, the amount of money in Billy's vacation fund, in dollars, at the end of w, weeks?A.y=35+14xB.y=36+35xC.y+50+21xD.y=50+35x

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