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Percent and the Percentages in the Business Mathematics | MTH 130, Study notes of Mathematics

Monroe Community CollegeMathematics
Prof. Brigitte Martineau

Material Type: Notes; Professor: Martineau; Class: Modern Business Mathematics; Subject: Mathematics (MTH); University: Monroe Community College; Term: Unknown 1989;

Typology: Study notes

Pre 2010

Uploaded on 08/09/2009

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MTH 130 Modern Business Mathematics
Brigitte Martineau Chapter 3 – Percents and Percentages
Page 1 of 4
Percent and Percentages
3.1 Percents (%)
Where or when in today’s life do we have to deal with percents?
What does it mean?
9%
63%
Let’s Practice:
Write as a ratio.
• 16 percent
• 20.5 percent
• 76 %
• 0.5%
Write as a fraction in lowest terms.
• 50 percent
• 112.5 percent
• 10%
• 4.4%
• 0.05%
pf3
pf4

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Brigitte Martineau Chapter 3 – Percents and Percentages

Percent and Percentages

3.1 Percents (%)

Where or when in today’s life do we have to deal with percents?

What does it mean?

Let’s Practice:

Write as a ratio.

  • 16 percent
  • 20.5 percent

Write as a fraction in lowest terms.

  • 50 percent
  • 112.5 percent

Brigitte Martineau Chapter 3 – Percents and Percentages

3.2 Decimals, Fractions & Percent Equivalents

  1. From Decimals to Fractions
  2. From Fractions to Decimals
  3. From Decimals to Percents
  4. From Percents to Decimals
  5. From Fractions to Percents
  6. From Percents to Fractions

Brigitte Martineau Chapter 3 – Percents and Percentages

  1. It is estimated that in the city of Chesterton, property values increase each year by 8% of their current value. If a house in Chesterton is currently worth $82,500, what will it be worth next year?
  2. Last week, Jim had $22 withheld from his gross pay of $440 for state tax. What percent of his gross pay was the tax?
  3. The school tax in the village of Brentwood is 45% of the assessed value of property. If a homeowner paid $2250 in school taxed, what is the assessed value of his property?
  4. Last year, Jerry’s salary was $32,000. This year he will earn a salary of $34,560. What percent increase does this represent?
  5. Following a recent move, Melanie’s travel time to her job changed from 45 minutes to 30 minutes. What percent decrease in travel time does this represent?