Page 518 - Basic College Mathematics with Early Integers

Chapter 6 Vocabulary Check

Fill in each blank with one of the choices or phrases listed below. Some choices may be used more than once.

1
percent sales tax is 0.01 amount of discount percent of decrease total price
100
base of amount 100% compound interest percent of increase sale price commission
1. In a mathematical statement, usually means “multiplication.”
2. In a mathematical statement, means “equals.”
3. means “per hundred.”
4. is computed not only on the principal, but also on interest already earned in previous
compounding periods.
percent
5. In the percent proportion, = .
100
6. To write a decimal or fraction as a percent, multiply by .
7. The decimal equivalent of the % symbol is .

8. The fraction equivalent of the % symbol is .
9. The percent equation is # percent = .
amount of decrease
10. = .
original amount
amount of increase
11. = .
original amount
#
12. = tax rate purchase price .
13. = purchase price + sales tax . Are you preparing for your
#
14. = commission rate sales. test? Don’t forget to take the Chapter 6 Test
on page 502. Then check your answers at the
#
15. = discount rate original price .
back of the text and use the Chapter Test Prep
16. = original price - amount of discount. Videos to see the fully worked-out solutions
to any of the exercises you want to review.
6 Chapter Highlights

Definitions and Concepts Examples
Section 6.1 Percents, Decimals, and Fractions

51
Percent means “per hundred.” The % symbol denotes 51% = 51 per 100
100
percent.
7
7% = 7 per 100
100
To write a percent as a decimal, replace the % symbol with 32%=32(0.01)=0.32
its decimal equivalent, 0.01, and multiply.
0.08=0.08(100%)=08.%=8%
To write a decimal as a percent, multiply by 100%.
1
25 25 1
To write a percent as a fraction, replace the % symbol with 25% = = # =
1 100 4 25 4
its fraction equivalent, , and multiply. 1
100
1 1 1 100 100 2
To write a fraction as a percent, multiply by 100%. = # 100% = # % = % = 16 %
6 6 6 1 6 3

495