Basic Mathematics for College Students

96. WATER USAGE The per-person indoor water use
    in the typical single family home is about 70 gallons
    per day. Complete the following table. Then draw a
    circle graph for the data.

534 Chapter 6 Percent

Electric power 34%

Transportation 28%

Industry 20%

Agriculture 7%

Commercial 6%

Residential 5%

Percent

Source of income Amount of total

Social Security, Medicare,

unemployment taxes $832 billion

Personal income taxes $1,118 billion

Corporate income taxes $338 billion

Excise, estate, customs taxes $156 billion

Borrowing to cover deficit $156 billion

Total Income, Fiscal Year 2007: $2,600 Billion

Source:2008 Federal Income Tax Form

Source:Environmental Protection

Agency,Time Magazine,June 8,

2009

Gallons per Percent of total

Use person per day daily use

Showers 11.9

Clothes washer 15.4

Dishwasher 0.7

Toilets 18.9

Baths 1.4

Leaks 9.8

Faucets 10.5

Other 1.4

Source:American Water Works Association

94. GREENHOUSE GASSES Draw a circle graph to
    show what percent of the total U.S. greenhouse gas
    emissions in 2007 came from each economic sector.

2007 Federal Income Sources

Daily Water Use per Person

95. GOVERNMENT INCOME Complete the following
    table by finding what percent of total federal
    government income in 2007 each source provided.
    Then draw a circle graph for the data.

WRITING

97. Write a real-life situation that can be described by “9
    is what percent of 20?”


98. Write a real-life situation that can be translated to
    .


99. Explain why 150% of a number is more than the
    number.

15 25%x