Concept explainers
To find the increase in percent of new amount by which it will return to its original amount.
Answer to Problem 27E
To return to the original amount, new amount has to increase by
Explanation of Solution
Given information:
An original amount is decreased by
Formula used:
New amount
Calculation:
Lets consider that original number be
To find the new amount, first multiply the percent of change by the original amount to
find the amount of change. Then decrease the original amount by the amount of change.
New amount
The new amount after deduction of
Amount of decrease
Now,
To return to the original amount we have to add the new amount with amount of decrease
So consider the new amount as original amount and amount of decrease as amount of
increase in order to find the increase percent.
Therefore,
Hence,
To return to the original amount, new amount has to increase by
Chapter 7 Solutions
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
Additional Math Textbook Solutions
College Algebra in Context with Applications for the Managerial, Life, and Social Sciences (5th Edition)
College Algebra (7th Edition)
College Algebra (10th Edition)
College Algebra with Modeling & Visualization (6th Edition)
College Algebra (5th Edition)
Linear Algebra with Applications (2-Download)
- 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