Page 461 - Basic College Mathematics with Early Integers

6 Percent

6.1 Percents, Decimals, and Fractions
6.2 Solving Percent Problems Using
Equations
6.3 Solving Percent Problems Using
Proportions
Integrated Review—Percent
and Percent Problems
This chapter is devoted to percent, a concept used virtually every day in ordinary and business life. Understanding
6.4 Applications of Percent
percent and using it efficiently depend on understanding ratios because a percent is a ratio whose denominator is
6.5 Percent and Problem Solving: Sales 100. We present techniques to write percents as fractions and as decimals and then solve problems relating to sales
Tax, Commission, and Discount
tax, commission, discounts, interest, and other real-life situations that use percents.
6.6 Percent and Problem Solving:
Interest
he number of U.S. households using cell phones only has been increasing while
households using landlines only has been decreasing. In the latter part of 2008,
Tthe percent of households using cell phones only surpassed the percent using
landlines only.
Vocabulary Check In Section 6.1, Exercises 85 and 86, we learn the percents of U.S. households
Chapter Highlights using cell phones only and landlines only, and we convert these percents to decimals.
Chapter Review
Chapter Test Cell-Phone-Only Users by State
Cumulative Review

More than 20%
15% to 20%
Copyright 2012 Pearson Education, Inc.
10% to 15%
5% to 10%
Less than 5%

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