Concept explainers
To determine the average fuel consumption on the expressway.
Answer to Problem 7P
The average fuel consumption on expressway is 35 mi/ gal.
Explanation of Solution
Given information :
In city Jeena averaged 15 mi/ gal for a distance of 60 mi
On expressway she drove 140 mi.
Distance travelled in city is 60 mi at an average of 15 mi/ gal.
Total gallons used in city is
Total distance travelled is 200 mi at 25mi/ gal.
Total gallons used is
Let us take
Hence we can write,
Hence we get the average fuel consumption on expressway is 35 mi/ gal.
Chapter 5 Solutions
Algebra and Trigonometry: Structure and Method, Book 2
Additional Math Textbook Solutions
Elementary Algebra
Algebra and Trigonometry (6th Edition)
Linear Algebra with Applications (9th Edition) (Featured Titles for Linear Algebra (Introductory))
Elementary and Intermediate Algebra
Intermediate Algebra for College Students (7th Edition)
College Algebra with Modeling & Visualization (5th 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