ReteachCh1-2b - Simplify Convert to a decimal by dividing...

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NAME _________________________________________ DATE ______________ PERIOD _______ Compare Rational Numbers To write a percent as decimal, divide by 100 and remove the percent symbol. To write a decimal as a percent, multiply by 100 and add the percent symbol. To express a fraction as a percent, you can solve a proportion or you can write the fraction as a decimal and then write the decimal as a percent. Example 1 Write 56% as a decimal. Divide by 100. Remove the percent symbol. Example 2 Write 0.17 as a percent. Multiply by 100. Add the percent symbol. Example 3 Write as a percent. Method 1 Use a proportion. Method 2 Write as a decimal. 7 · 100 = 20 · x 700 = 20 x 35 = x Write the proportion. Find cross products. Multiply. Divide each side by 20.
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Unformatted text preview: Simplify. Convert to a decimal by dividing. Multiply by 100, and add the percent symbol. Compare Rational Numbers http://glencoe.com/sites/common_assets/mathematics/0078916. .. 1 of 3 9/22/10 9:28 AM So, can be written as 35%. Exercises Write each percent as a decimal. 10% 1. 36% 2. 0.8% 3. 49.1% 4. Write each decimal as a percent. 0.14 5. 0.59 6. 0.932 7. 1.07 8. Write each fraction as a percent. 9. 10. 11. Compare Rational Numbers http://glencoe.com/sites/common_assets/mathematics/0078916. .. 2 of 3 9/22/10 9:28 AM 12. Chapter 1 36 Course 3 Compare Rational Numbers http://glencoe.com/sites/common_assets/mathematics/0078916. .. 3 of 3 9/22/10 9:28 AM...
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This note was uploaded on 04/19/2011 for the course MTH 110 taught by Professor Helenius during the Winter '08 term at Grand Valley State.

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ReteachCh1-2b - Simplify Convert to a decimal by dividing...

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