7. A publisher asks a printer for quotations on the cost of printing 2,000 and 3,000 copies of book.The printer quotes $8,500 for 2,000 copies and $14,500 for 3,000 copies. Assume that cost, y islinearly related to x, the number of books printed. a) Write the coordinates of given points. b)Write the equation of the line. c) What is the cost of printing 4,500 copies?

Answered: 7. A publisher asks a printer for…

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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6. Write the equation of each line.
a. Reduce the line 2x-3y+5=0 in slope intercept,intercept,and normal forms. b.Find the equation of the line which is at a perpendicular distance of 5 units from the origin and the angle made by the perpendicular with the positive x-axis is 30 degree.
Determine whether the given statement makes sense or does not make sense, and explain your reasoning : "I computed the slope of one line to be -3/5 and the slope of a second line to be -5/3 , so the lines must be perpendicular."
Tim bought a new computer for his office for ₱60,000. For tax purposes, he declares a linear depreciation (loss of value) of ₱5,000 per year.a) Write a linear equation in slope-intercept form to model this situation.b) Find the value of the computer after 4.5 years.
Suppose Pete wants to track his weight loss. Pete figured that his weight loss can be modelled by w= -5m+205, where w is his weight in pounds and m is the number of months. a) what is the slope with units of the line represented by this equation? b) Write a sentence to interpret the slope in context. c) What is the y-intercept, as a point, of the line represented by this equation? d) Write a sentence to interpret the y- intercept in context.
An antique clock is expected to be worth $350.00 after 2 years and $530.00 after 5 years. a) Find the slope and equation of the line. b) Find how much will the clock be worth after 7 years
5. Write an equation of a line that is perpendicular to y = 3x - 4
a. Find the equation of a straight line cutting off an intercept -1 from they-axis and being equally inclined to the axes. b.Find the equation of a line that has y- intercept 4 and is perpendicular to the line joining (2, -3) and (4, 2).
a. Find the equation of a straight line cutting off an intercept -1 from they-axis and being equally inclined to the axes. b.Find the equation of a line that has y- intercept 4 and is perpendicular to the line joining (2, -3) and (4, 2).
3. a Marcel read a book cover to cover in a single session, at a rate of 55 pages per hour. a) write a linear equation for this scenario. identify the variables, the slope, and the intercept with their units.
11. Joe’s hourly wage increases at a constant rate of $1.50/year. In 2020 his wage is $26. a) the rate is constant, therefore what do we know about the relationship? b) write the equation for Joe’s salary. State what each variable represents. Graph it, label the axes. c) what was Joe’s wage in 2017 ? d) when will Joe’s wage be $41 ?
Construction and building inspectors ensure that construction meets local and national buillding codes and ordinances, zoning regulations, and contract specifications. They spend considerable time inspecting worksites, alone or as part of a team. Most work full time during regular business hours. Many states and local jurisdictions require some type of license or certification. The median annual wage was $56,040 in May 2014. SOURCE: Bureau of Labor and Statistics, U.S. Department of Labor, Occupational Outlook Handbook, 2016 - 2017 Edition E, Construction and Building Inspectors A wheelchalir ramp with a length of 614 Inches has a horizontal distance of 610 Inches. What is the ramp's vertical distance (height)? inches State your response to the nearest 0. 1 Construction laws are very specific when it comes to access ramps for the disabled. Every vertical rise of 1 inch requires a horizontal run of at least 12 inches. Does the ramp above satisfy the requirement? O Yes O No

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