Concept explainers
a.
To write a system of equations to model the situation.
a.
Answer to Problem 10STP
Explanation of Solution
Given:
Valeria has
Calculation:
Letthe number of quarters be
The equation representing the total coins.
Equation representing the total dollar amount of the coins.
Therefore the system of equations is −
b.
To write the matrix equation to solve for the number of quarters and dimes.
b.
Answer to Problem 10STP
Explanation of Solution
Given:
Valeria has
Calculation:
The matrix equation is -
c.
To solve the matrix using inverse.
c.
Answer to Problem 10STP
Explanation of Solution
Given:
Valeria has
Calculation:
The system of equations is −
Use a matrix equation to solve the system.
Chapter 4 Solutions
Algebra 2
Additional Math Textbook Solutions
College Algebra
Elementary Algebra
Linear Algebra and Its Applications (5th Edition)
College Algebra (7th Edition)
- Algebra and Trigonometry (6th Edition)AlgebraISBN:9780134463216Author:Robert F. BlitzerPublisher:PEARSONContemporary Abstract AlgebraAlgebraISBN:9781305657960Author:Joseph GallianPublisher:Cengage LearningLinear Algebra: A Modern IntroductionAlgebraISBN:9781285463247Author:David PoolePublisher:Cengage Learning
- Algebra And Trigonometry (11th Edition)AlgebraISBN:9780135163078Author:Michael SullivanPublisher:PEARSONIntroduction to Linear Algebra, Fifth EditionAlgebraISBN:9780980232776Author:Gilbert StrangPublisher:Wellesley-Cambridge PressCollege Algebra (Collegiate Math)AlgebraISBN:9780077836344Author:Julie Miller, Donna GerkenPublisher:McGraw-Hill Education