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book Contemporary Mathematics for Business and Consumers 7th Edition by Robert Brechner ,George Bergeman cover

Contemporary Mathematics for Business and Consumers 7th Edition by Robert Brechner ,George Bergeman

Edition 7ISBN: 978-1285448596
book Contemporary Mathematics for Business and Consumers 7th Edition by Robert Brechner ,George Bergeman cover

Contemporary Mathematics for Business and Consumers 7th Edition by Robert Brechner ,George Bergeman

Edition 7ISBN: 978-1285448596
Exercise 45
Solve the following increase or decrease problems for the unknown. Round decimals to hundredths and percents to the nearest tenth.
According to the U.S. Census Bureau, in 1950, 39.3 million families had a child under 18 at home. A recent study found that number had decreased by 9.4 percent. How many families had a child under 18 at home according to this study? Round the number of millions to the nearest tenth.
Explanation
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Rate of change formula:
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Contemporary Mathematics for Business and Consumers 7th Edition by Robert Brechner ,George Bergeman
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