- WASTE The circle graph below shows the types
of trash U.S. residents, businesses, and institutions
generated in 2007. If the total amount of trash
produced that year was about 254 million tons,
how many million tons of yard trimmings was
there?
87. PRODUCT
PROMOTION To
promote sales, a free
6-ounce bottle of
shampoo is packaged
with every large bottle.
Use the information
on the package to find
how many ounces of
shampoo the large
bottle contains.
- NUTRITION FACTS The nutrition label on a
package of corn chips is shown.
a. How many milligrams of sodium are in one
serving of chips?
b. According to the label, what percent of the daily
value of sodium is this?
c. What daily value of sodium intake is considered
healthy?
Nutrition Facts
Serving Size: 1 oz. (28g/About 29 chips)
Servings Per Container: About 11
Amount Per Serving
Calories 160 Calories from Fat 90
Total fat 10 g
Saturated fat 1.5 g
Cholesterol 0mg
Sodium 240mg
Total carbohydrate 15 g
Dietary fiber 1g
Sugars less than 1g
Protein 2 g
15 %
7 %
0 %
12 %
5 %
4 %
% Daily Value
Source: Environmental Protection Agency
Rubber,
leather, and
textiles
7.6%
Wood
5.6%
Food scraps
12.5%
U.S. Trash Generation by Material
Before Recycling, 2007
(254 Million Tons)
Other
3.2%
Paper
32.7%
Glass
5.3%
Metals
8.2%
Plastics
12.1%
Yard
trimmings
12.8%
- MIXTURES Complete the table to find the number
of gallons of sulfuric acid in each of two storage tanks.
6.2 Solving Percent Problems Using Percent Equations and Proportions 533
SHAMPOO
SHAMPOO
25% MORE–
FREE!
Gallons of Gallons of
solution % Sulfuric sulfuric acid
in tank acid in tank
Tank 1 60 50%
Tank 2 40 30%
- THE ALPHABET What percent of the English
alphabet do the vowels a, e, i, o, and u make up?
(Round to the nearest 1 percent.)
- TIPS In August of 2006, a customer left Applebee’s
employee Cindy Kienow of Hutchinson, Kansas, a
$10,000 tip for a bill that was approximately $25.
What percent tip is this? (Source:cbsnews.com)
- ELECTIONS In Los Angeles City Council races, if
no candidate receives more than 50% of the vote, a
runoff election is held between the first- and second-
place finishers.
a. How many total votes were cast?
b. Determine whether there must be a runoff
election for District 10.
City council District 10
Nate Holden 8,501
Madison T. Shockley 3,614
Scott Suh 2,630
Marsha Brown 2,432
Renewable 10%
Nuclear 12%
Coal 32%
Natural gas 32%
Petroleum 14%
Source:Energy Information
Administration
Use a circle graph to illustrate the given data. A circle divided into
100 sections is provided to help in the graphing process.
- ENERGY Draw a circle graph to show what percent
of the total U.S. energy produced in 2007 was
provided by each source.
