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

5. Example 6-8b Vocabulary None

6. 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

7. 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

8. 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: 0.17 1/8

9. Example 6-2a Write 47.8% as a decimal. Answer: 0.478 Write the problem 47.8 % Write the percent as a fraction. 0.478 2/8 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

10. Example 6-2b Write 83.2% as a decimal. Answer: 0.832 2/8

11. Example 6-3a Write 95.3% as a decimal. Answer: 0.953 Write percent as fraction 95.3 100 0.953 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

12. Example 6-3b Write 38% as a decimal. Answer: 0.38 3/8

13. Example 6-4a Write as a decimal. Answer: 0.082 Write the problem 8.2 100 4/8 Write percent as fraction Remove the percent sign Convert the mixed number to a decimal 8 + 1  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

14. Example 6-4b Answer: 0.2775 Write as a decimal. 4/8

15. 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 100 5 Add percent sign 5 % 5/8

16. Example 6-5b POPULATION In 2000, the population of Illinois had increased by 0.086 from 1990. Write 0.086 as a percent. Answer: 8.6% 5/8

17. Example 6-6a Write 0.121 as a percent. Answer: 12.1% Write problem 0.121 Multiply by 100 12.1 Add percent symbol 6/8 12.1%

18. Example 6-6b Write 0.364 as a percent. Answer: 36.4% 6/8

19. Example 6-7a Write 0.33 as a percent. Add the percent sign Write problem 0.33 Multiply by 100 33 33 % 7/8 Answer: 33%

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

21. Example 6-8a Write 0.419 as a percent. Write problem 0.419 Multiply by 100 41.9 Add the percent sign 41.9 % 8/8 Answer: 41.9%

22. Example 6-8b Write 0.869 as a percent. Answer: 86.9% * 8/8

23. End of Lesson 6 Assignment Lesson 5:6Percents and Decimals12 - 32 All