Concept explainers
(a)
To justify: the number of hours the total costs will be same
(a)
Answer to Problem 14CT
The total costs will be same for
Explanation of Solution
Given:
Cost of parts | Labor cost per hour | |
Dealership | $24 | $99 |
Local mechanic | $45 | $89 |
Calculation:
Find when the costs are equal:
Define a variable.
Write an equation.
Subtract
Subtract 24 from both sides.
Divide both sides by 10.
Conclusion:
The total costs will be same for
(b)
To find: where will the cost be cheaper.
(b)
Answer to Problem 14CT
When the number of hours is more than 2.1, it is cheaper at the local mechanic.
Explanation of Solution
Calculation:
When the number of hours is more than 2.1, it is cheaper at the local mechanic. When the number of hours is less than 2.1, it is cheaper at the dealership.
Conclusion:
When the number of hours is more than 2.1, it is cheaper at the local mechanic.
Chapter 1 Solutions
BIG IDEAS MATH Integrated Math 1: Student Edition 2016
- Discrete Mathematics and Its Applications ( 8th I...MathISBN:9781259676512Author:Kenneth H RosenPublisher:McGraw-Hill EducationMathematics for Elementary Teachers with Activiti...MathISBN:9780134392790Author:Beckmann, SybillaPublisher:PEARSON
- Thinking Mathematically (7th Edition)MathISBN:9780134683713Author:Robert F. BlitzerPublisher:PEARSONDiscrete Mathematics With ApplicationsMathISBN:9781337694193Author:EPP, Susanna S.Publisher:Cengage Learning,Pathways To Math Literacy (looseleaf)MathISBN:9781259985607Author:David Sobecki Professor, Brian A. MercerPublisher:McGraw-Hill Education