Concept explainers
(a)
To find: The number of years having equal enrollment in both classes
(a)
Answer to Problem 38E
The number of years having equal enrollment in both classes will be
Explanation of Solution
Given:
Students enrolled this year | Average rate of change | |
Spanish | 355 | 9 fewer students each year |
French | 229 | 12 more students each year |
Calculation:
The graph intersects when
So, the number of years having equal enrollment in both classes will be
The number of years having equal enrollment in both classes will be
(B)
To relate: The table and to determine whether the result obtained from part (a) is reasonable or not.
(B)
Answer to Problem 38E
Part (a) answer is reasonable or not.
Explanation of Solution
Given:
Calculation:
Students enrolled this year | Average rate of change | |
Spanish | 355 | 9 fewer students each year |
French | 229 | 12 more students each year |
From the table, it is clear that 355 students joined the Spanish class and 9 students change each year.
So, it will be equated as
229 students joined the French class and 12 more students add each year. So, it will be equated as
The given equation can be used to determine when the enrollment is equal
Conclusion:
Therefore, part (a) answer is reasonable or not.
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