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Use the Definition of Percents
In the following exercises, write each percent as a ratio.
In the unemployment rate for those with only a high school degree was
In among the unemployed, were long-term unemployed.
The unemployment rate for those with Bachelor's degrees was in
The unemployment rate in Michigan in was
In the following exercises, write as
out of nursing candidates received their degree at a community college.
out of firefighters and law enforcement officers were educated at a community college.
out of first-time freshmen students attend a community college.
out of full-time community college faculty have a master's degree.
Convert Percents to Fractions and Decimals
In the following exercises, convert each percent to a fraction and simplify all fractions.
In the following exercises, convert each percent to a decimal.
In the following exercises, convert each percent to
In of home sales had owner financing. ( Source: Bloomberg Businessweek, 5/23–29/2011)
In of the United States population was of Asian descent. ( Source: www.census.gov)
According to government data, in the number of cell phones in India was of the population.
According to the U.S. Census Bureau, among Americans age or older who had doctorate degrees in are women.
A couple plans to have two children. The probability they will have two girls is
Javier will choose one digit at random from through The probability he will choose is
According to the local weather report, the probability of thunderstorms in New York City on July is
A club sells tickets to a raffle. Osbaldo bought one ticket. The probability he will win the raffle is
Convert Decimals and Fractions to Percents
In the following exercises, convert each decimal to a percent.
In the following exercises, convert each fraction to a percent.
In the following exercises, convert each fraction to a percent.
of dishwashers needed repair.
In the following exercises, convert each fraction to a percent.
According to the National Center for Health Statistics, in of American adults were obese.
35%
The U.S. Census Bureau estimated that in of Americans lived in the same house as they did year before.
Fraction | Decimal | Percent |
Fraction | Decimal | Percent |
Sales tax Felipa says she has an easy way to estimate the sales tax when she makes a purchase. The sales tax in her city is She knows this is a little less than
Savings Ryan has of each paycheck automatically deposited in his savings account.
Amelio is shoping for textbooks online. He found three sellers that are offering a book he needs for the same price, including shipping. To decide which seller to buy from he is comparing their customer satisfaction ratings. The ratings are given in the chart.
Seller | Rating |
---|---|
Write seller rating as a percent and a decimal.
Which seller should Amelio buy from and why?
Convert to fractions. Do you notice a pattern? Explain what the pattern is.
Convert and to percents. Do you notice a pattern? Explain what the pattern is.
When the Szetos sold their home, the selling price was of what they had paid for the house ago. Explain what means in this context.
The Szetos sold their home for five times what they paid 30 years ago.
According to cnn.com, cell phone use in was of what it had been in Explain what means in this context.
ⓐ After completing the exercises, use this checklist to evaluate your mastery of the objectives of this section.
ⓑ If most of your checks were:
…confidently. Congratulations! You have achieved the objectives in this section. Reflect on the study skills you used so that you can continue to use them. What did you do to become confident of your ability to do these things? Be specific.
…with some help. This must be addressed quickly because topics you do not master become potholes in your road to success. In math, every topic builds upon previous work. It is important to make sure you have a strong foundation before you move on. Who can you ask for help? Your fellow classmates and instructor are good resources. Is there a place on campus where math tutors are available? Can your study skills be improved?
…no—I don’t get it! This is a warning sign and you must not ignore it. You should get help right away or you will quickly be overwhelmed. See your instructor as soon as you can to discuss your situation. Together you can come up with a plan to get you the help you need.
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