Using & Understanding Mathematics: A Quantitative Reasoning Approach, 7th edition
Choose the option that's right for you
Single
$9.99 / mo
4month minimum term for $39.96
 Access this eText title
 Up to 2 devices
Multi
$14.99 / mo
4month minimum term for $59.96
 Access over 1,500 titles
 Up to 2 devices
 Discounted tutor access
Learn more, spend less

Watch and learn
Videos & animations bring concepts to life

Learn anytime, anywhere
Get the app to access your eText whenever you need it

Make it your own
Your notes. Your highlights. Your eText

Find it fast
Quickly navigate your eText with search

Stay organized
Access all your eTexts in one place
Overview
With Using & Understanding Mathematics, see the relevance of mathematics in everyday life. From buying groceries to paying taxes, the text will help you develop your criticalthinking and quantitative reasoning skills  so you can master the math you'll encounter in your college courses, future career, and daily life.
Published by Pearson (July 14th 2021)  Copyright © 2019
ISBN13: 9780137553334
Table of contents
Preface
Acknowledgments
Prologue: Literacy for the Modern World
I. LOGIC AND PROBLEM SOLVING
1. Thinking Critically
Activity: Bursting Bubble
1A. Living in the Media Age
In Your World: Fact Checking on the Web
1B. Propositions and Truth Values
1C. Sets and Venn Diagrams
Brief Review: Sets of Numbers
1D. Analyzing Arguments
Mathematical Insight: Deductive Proof of the Pythagorean Theorem
1E. Critical Thinking in Everyday Life
In Your World: Beware of "Up to" Deals
2. Approaches to Problem Solving
Activity: Global Melting
2A. Understand, Solve, and Explain
Brief Review: Common Fractions
Brief Review: Decimal Fractions
Using Technology: Currency Exchange Rates
In Your World: Changing Money in Foreign Countries
2B. Extending Unit Analysis
In Your World: Gems and Gold Jewelry
Brief Review: Powers of 10
Using Technology: Metric Conversions
In Your World: Save Money and Save the Earth
2C. ProblemSolving Hints
Mathematical Insight: Zeno's Paradox
II. QUANTITATIVE INFORMATION IN EVERYDAY LIFE
3. Numbers in the Real World
Activity: Big Numbers
3A. Uses and Abuses of Percentages
Brief Review: Percentages
Brief Review: What Is a Ratio?
3B. Putting Numbers in Perspective
Brief Review: Working with Scientific Notation
Using Technology: Scientific Notation
3C. Dealing with Uncertainty
Brief Review: Rounding
Using Technology: Rounding in Excel
3D. Index Numbers: The CPI and Beyond
Using Technology: The Inflation Calculator
In Your World: The Chained CPI and the Federal Budget
3E. How Numbers Can Deceive: Polygraphs, Mammograms, and More
4. Managing Money
Activity: Student Loans
4A. Taking Control of Your Finances
4B. The Power of Compounding
Brief Review: Powers and Roots
Using Technology: Powers
Using Technology: The Compound Interest Formula
Using Technology: The Compound Interest Formula for Interest Paid More Than Once a Year
Using Technology: APY in Excel
Using Technology: Powers of e
Brief Review: Four Basic Rules of Algebra
In Your World: Effects of Low Interest Rates
4C. Savings Plans and Investments
Mathematical Insight: Derivation of the Savings Plan Formula
Using Technology: The Savings Plan Formula
Using Technology: Fractional Powers (Roots)
In Your World: Building a Portfolio
4D. Loan Payments, Credit Cards, and Mortgages
Using Technology: The Loan Payment Formula (Installment Loans)
Mathematical Insight: Derivation of the Loan Payment Formula
Using Technology: Principal and Interest Portions of Loan Payments
In Your World: Avoiding Credit Card Trouble
In Your World: Choosing or Refinancing a Loan
4E. Income Taxes
4F. Understanding the Federal Budget
III. PROBABILITY AND STATISTICS
5. Statistical Reasoning
Activity: Cell Phones and Driving
5A. Fundamentals of Statistics
Using Technology: Random Numbers
5B. Should You Believe a Statistical Study?
In Your World: The Gun Debate: Defensive Gun Use
5C. Statistical Tables and Graphs
Using Technology: Frequency Tables in Excel
Using Technology: Bar Graphs and Pie Charts in Excel
Using Technology: Line Charts in Excel
5D. Graphics in the Media
Using Technology: Graphs with Multiple Data Sets
5E. Correlation and Causality
Using Technology: Scatterplots in Excel
6. Putting Statistics to Work
Activity: Are We Smarter Than Our Parents?
6A. Characterizing Data
Using Technology: Mean, Median, and Mode in Excel
6B. Measures of Variation
Using Technology: Standard Deviation in Excel
6C. The Normal Distribution
Using Technology: Standard Scores and Percentiles in Excel
6D. Statistical Inference
In Your World: Is Polling Reliable?
7. Probability: Living With The Odds
Activity: Lotteries
7A. Fundamentals of Probability
Brief Review: The Multiplication Principle
7B. Combining Probabilities
7C. The Law of Large Numbers
7D. Assessing Risk
In Your World: Terrorism, Risk, and Human Psychology
7E. Counting and Probability
Using Technology: Factorials
Brief Review: Factorials
Using Technology: Permutations
Using Technology: Combinations
IV. MODELING
8. Exponential Astonishment
Activity: Towers of Hanoi
8A. Growth: Linear vs. Exponential
8B. Doubling Time and HalfLife
Using Technology: Logarithms
Brief Review: Logarithms
8C. Real Population Growth
In Your World: Choosing Our Fate
8D. Logarithmic Scales: Earthquakes, Sounds, and Acids
In Your World: Ocean Acidification
9. Modeling Our World
Activity: Climate Modeling
9A. Functions: The Building Blocks of Mathematical Models
Brief Review: The Coordinate Plane
9B. Linear Modeling
Using Technology: Graphing Functions
In Your World: Algebra's Baghdad Connection
9C. Exponential Modeling
Brief Review: Algebra with Logarithms
Mathematical Insight: Doubling Time and HalfLife Formulas
In Your World: Changing Rates of Change
10. Modeling With Geometry
Activity: Eyes in the Sky
10A. Fundamentals of Geometry
Mathematical Insight: Archimedes and Pi
In Your World: Plato, Geometry, and Atlantis
10B. Problem Solving with Geometry
10C. Fractal Geometry
V. FURTHER APPLICATIONS
11. Mathematics and The Arts
Activity: Digital Music Files
11A. Mathematics and Music
In Your World: Music Just for You
11B. Perspective and Symmetry
11C. Proportion and the Golden Ratio
12. Mathematics and Politics
Activity: Partisan Redistricting
12A. Voting: Does the Majority Always Rule?
In Your World: Counting VotesNot as Easy as It Sounds
12B. Theory of Voting
In Your World: The Electoral College and the Presidency
12C. Apportionment: The House of Representatives and Beyond
12D. Dividing the Political Pie
Credits
Answers to Quick Quizzes and OddNumbered Exercises
Index
Your questions answered
Introducing Pearson+. Reimagined learning, designed for you. Choose from one eText or over 1,500 eTexts and study tools, all in one place, for one low monthly subscription. A new way to buy books that fits your budget. Make the most of your study time with offline access, enhanced search, notes and flashcards — to get organized, get the work done quicker and get results. Plus, with the app, put textbooks in your pocket and learn wherever. It's time to upgrade the textbook and simplify learning, so you can have time to live too.
Pearson eText is an easytouse digital textbook available from Pearson+. Make it your own by adding notes and highlights. Download the Pearson+ mobile app to learn on the go, even offline. Listen on the go with our new audiobook feature, available for most titles.
When you choose a plan, you're signing up for a 4month term. We will charge your payment method each month until your 4month term has ended. After that, we'll automatically renew your subscription and charge you on a monthtomonth basis unless you turn off autorenewal in My account.
When you purchase a Pearson+ subscription, it will last a minimum of 4 months, and then automatically renew each month thereafter unless you turn off autorenew in My account.
If you want to stop your subscription at the end of your 4month term, simply turn off autorenew from My account. To avoid the next payment charge, make sure you turn auto renewal off 1 day before the auto renewal date.
You can subscribe again after autorenew has been turned off by purchasing another Pearson+ subscription.
We use your credit card to renew your subscription automatically. To make sure your learning is uninterrupted, please check your card details before your first monthly payment.
With a Multi Pearson+ subscription plan, you can download up to 5 titles on the Pearson+ app from My list on each of your authorized devices every month.
When you're using your Multi Pearson+ subscription plan in a browser, you can select and read from as many titles as you like.