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Example 6-8b Objective Write percents as decimals and Decimals as percents

Example 6-8b Vocabulary None

Lesson 6 Contents Example 1Write Percents as Decimals Example 2Write Percents as Decimals Example 3Write Percents as Decimals Example 4Write Percents as Decimals Example 5Write Decimals as Percents Example 6Write Decimals as Percents Example 7Write Decimals as Percents Example 8Write Decimals as Percents

Example 6-1a POPULATION According to the Administration on Aging, about 28% of the population of the United States is 19 years of age or younger. Write 28% as a decimal. Write the percent as a fraction. Answer: 0.28 Using the calculator, convert the fraction to a decimal by dividing numerator by denominator Write the problem 28 % 1/8 Remove the percent sign and put number in numerator Since percent refers to 100, make the denominator 100

Example 6-1b AMUSEMENT PARK A popular amusement park reports that 17% of its visitors will return at least three times during the year. Write 17% as a decimal. Answer: /8

Example 6-2a Write 47.8% as a decimal. Answer: Write the problem 47.8 % Write the percent as a fraction /8 Remove the percent sign and put number in numerator Since percent refers to 100, make the denominator 100 Using the calculator, convert the fraction to a decimal by dividing numerator by denominator

Example 6-2b Write 83.2% as a decimal. Answer: /8

Example 6-3a Write 95.3% as a decimal. Answer: Write percent as fraction Write the problem 95.3 % 3/8 Remove the percent sign and put number in numerator Since percent refers to 100, make the denominator 100 Using the calculator, convert the fraction to a decimal by dividing numerator by denominator

Example 6-3b Write 38% as a decimal. Answer: /8

Example 6-4a Write as a decimal. Answer: Write the problem /8 Write percent as fraction Remove the percent sign Convert the mixed number to a decimal  5 Put decimal in the numerator Since percent refers to 100, make the denominator 100 Using the calculator, convert the fraction to a decimal by dividing numerator by denominator

Example 6-4b Answer: Write as a decimal. 4/8

Example 6-5a POPULATION In 1790, about 0.05 of the population of the United States lived in an urban setting. Write 0.05 as a percent. Answer: 5 % Write the problem0.05 Multiply by Add percent sign 5 % 5/8

Example 6-5b POPULATION In 2000, the population of Illinois had increased by from Write as a percent. Answer: 8.6% 5/8

Example 6-6a Write as a percent. Answer: 12.1% Write problem Multiply by Add percent symbol 6/8 12.1%

Example 6-6b Write as a percent. Answer: 36.4% 6/8

Example 6-7a Write 0.33 as a percent. Add the percent sign Write problem 0.33 Multiply by % 7/8 Answer: 33%

Example 6-7b Write 0.52 as a percent. Answer: 52% 7/8

Example 6-8a Write as a percent. Write problem Multiply by Add the percent sign 41.9 % 8/8 Answer: 41.9%

Example 6-8b Write as a percent. Answer: 86.9% * 8/8

End of Lesson 6 Assignment Lesson 5:6Percents and Decimals All