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Lesson 4 Contents Objective #1: Express Percents as fractions and vice versa Example 1Percents as Fractions Example 2Fractions as Percents Objective #2: Express Percents as decimals and vice versa Example 3Percents as Decimals Example 4Decimals as Percents Example 5Fractions as Percents Example 6Compare Numbers

Lesson 4 Contents Practice and Apply Obj. #1: Express Percents as fractions and vice versa odd, odd (alt. 17, 21, 25, 35, 39) Obj. #2: Express Percents as decimals and vice versa odd, (alt. 29, 33) Maintaining Your Skills 56-65

Example 4-1a Express 60% as a fraction in simplest form. Answer: Obj. #1: Percents and fractions

Example 4-1b Express 104% as a fraction in simplest form. Answer: Obj. #1: Percents and fractions

Example 4-1c Express 0.3% as a fraction in simplest form. Answer: Multiply by to eliminate the decimal in the numerator. Obj. #1: Percents and fractions

Example 4-1d The fraction bar indicates division. Express as a fraction in simplest form. Answer: 9 4 Obj. #1: Percents and fractions

Example 4-2a Express as a percent. Answer: Obj. #1: Percents and fractions

Example 4-2b Answer: Express as a percent. Obj. #1: Percents and fractions

Example 4-1e Obj. #1: Percents and fractions

Example 4-1e Express each percent as a fraction in simplest form. a. b. c. d. Answer: Obj. #1: Percents and fractions

Example 4-2c Express each fraction as a percent. a. b. Answer: 68% Answer: 140% Obj. #1: Percents and fractions

Example 4-3a Express 60% as a decimal. Divide by 100 and remove the %. Answer: Obj. #2: Percents and decimals

Example 4-3b Express 2% as a decimal. Divide by 100 and remove the %. Answer: Obj. #2: Percents and decimals

Example 4-3c Express 658% as a decimal. Divide by 100 and remove the %. Answer: Obj. #2: Percents and decimals

Example 4-3d Express 0.4% as a decimal. Divide by 100 and remove the %. Answer: Obj. #2: Percents and decimals

Example 4-4a Express 0.4 as a percent. Answer: Multiply by 100 and add the %. Obj. #2: Percents and decimals

Example 4-4b Express 0.05 as a percent. Answer: Multiply by 100 and add the %. Obj. #2: Percents and decimals

Example 4-4c Express as a percent. Answer: Multiply by 100 and add the %. Obj. #2: Percents and decimals

Example 4-4d Express 7.3 as a percent. Answer: Multiply by 100 and add the %. Obj. #2: Percents and decimals

Example 4-5a Express as a percent. Round to the nearest tenth percent, if necessary. Answer: Obj. #2: Percents and decimals

Expressas a percent. Round to the nearest tenth percent, if necessary. Example 4-5b Answer: Obj. #2: Percents and decimals

Express as a percent. Round to the nearest tenth percent, if necessary. Example 4-5c Answer: Obj. #2: Percents and decimals

Example 4-5d Express as a percent. Round to the nearest tenth percent, if necessary. Answer: Obj. #2: Percents and decimals

Example 4-6a Bakery A baker says that 25% of his customers buy only bread and of his customers buy only cookies. Which group is larger? Write as a percent. Then compare. Answer: Since 40% is greater than 25%, the group that buys only cookies is larger. Obj. #2: Percents and decimals

Example 4-3e Obj. #2: Percents and decimals

Example 4-3e Express each percent as a decimal. a. 84% b. 7% c. 302% d. 0.9% Answer: 0.84 Answer: 0.07 Answer: 3.02 Answer: Obj. #2: Percents and decimals

Example 4-4e Express each decimal as a percent. a b c d Answer: 84% Answer: 1% Answer: 0.4% Answer: 239% Obj. #2: Percents and decimals

Express each fraction as a percent. Round to the nearest tenth percent, if necessary. a. b. c. d. Example 4-5e Answer: 37.5% Answer: 41.7% Answer: 1.3% Answer: 123.5% Obj. #2: Percents and decimals

Example 4-6b School The school principal states that of the students are involved in instrumental music while 42% are involved in vocal music. Which group is larger? Answer: The group involved in vocal music is larger. Obj. #2: Percents and decimals

End of Lesson 4