Pacific
Coast
States
Middle
Atlantic
States
New England
States
Rocky
Mountain
States
Midwestern
States
Southwestern
States
Southern
States
- SAVING MONEY According to an article on the
CNN website, in 1970 Americans saved 14 cents out
of every dollar earned. (Source:CNN.com/living,
May 21, 2009)
a. Express the amount saved for every dollar
earned as a fraction in simplest form.
b. Write your answer to part a as a percent.
- REGIONS OF THE COUNTRY The continental
United States is divided into seven regions as shown
below.
a. What percent of the 50 states are in the Rocky
Mountain region?
b. What percent of the 50 states are in the
Midwestern region?
c. What percent of the 50 states are not located in
any of the seven regions shown here?
107. HUMAN SKIN The illustration below shows what
percent of the total skin area that each section of the
body covers. Find the missing percent for the torso,
and then complete the bar graph. (Source:Burn
Center at Sherman Oaks Hospital, American Medical
Assn. Encyclopedia of Medicine)
108. RAP MUSIC The table below shows what percent
rap/hip-hop music sales were of total U.S. dollar
sales of recorded music for the years 2001–2007.
Use the data to construct a line graph.
Arms & hands
Head
Legs & feet
NeckTorso
Percent of total skin area
50%
40%
30%
20%
10%
3%
3%
10.5% 10.5%
3%
3%
7% 7%
8%
4% 4%
2.5%
3.5% 3.5%
Torso
?%
6.1 Percents, Decimals, and Fractions 511
- ROAD SIGNS Sometimes, signs like that shown
below are posted to warn truckers when they are
approaching a steep grade on the highway.
a. Write the grade
shown on the sign
as a fraction.
b. Write the grade
shown on the sign
as a decimal.
- INTEREST RATES Write each interest rate for
the following accounts as a decimal.
a. Home loan: 7.75%
b. Savings account: 5%
c. Credit card: 14.25%
- DRUNK DRIVING In most states, it is illegal to
drive with a blood alcohol concentration of 0.08%
or higher.
a. Write this percent as a fraction. Do not simplify.
b. Use your answer to part a to fill in the blanks: A
blood alcohol concentration of 0.08% means
parts alcohol to parts blood.
?
100 ft
5%
AHEAD
2001 2002 2003 2004 2005 2006 2007
11.4% 13.8% 13.3% 12.1% 13.3% 11.4% 10.8%
Source: Recording Industry Association of America
- THE U.N. SECURITY COUNCIL The United
Nations has 192 members. The United States, Russia,
the United Kingdom, France, and China, along with
ten other nations, make up the Security Council.
(Source:The World Almanac and Book of Facts,2009)
a. What fraction of the members of the United
Nations belong to the Security Council? Write
your answer in simplest form.
b. Write your answer to part a as a decimal. (Hint:
Divide to six decimal places. The result is a
terminating decimal.)
c. Write your answer to part b as a percent.
Year
20012002 2003 2004 2005 2006 2007
9.0%
10.0%
11.0%
12.0%
13.0%
14.0%
Percent of U.S. music sales
Rap/Hip-Hop Music Sales
