1. Sec 3.1 Writing Decimals and Fractions as Percents Objectives –Write a percent as a decimal –Write a percent as a fraction –Write a fractional percent as a decimal –Write a decimal as a percent –Write a fraction as a percent

2. Percents are:  hundredths, or  parts of 100

3. Summary To Write a Percent as a Decimal: –Delete the percent sign –Move the decimal point two places to the left.

4. Summary To Write a Percent as a Fraction: –First write the percent as a decimal –Next, write the decimal as a fraction –Finally, write the fraction in lowest terms.

5. Summary To Write a Fractional Percent as a Decimal: –Write the fraction as a decimal percent –Convert the decimal percent to a decimal--ie. delete the percent sign and move the decimal point two places to the left.

6. Summary To Write a Decimal as a Percent: –Move decimal point two places to the right –Attach percent (%) sign.

7. Summary To Write a Fraction as a Percent: –Multiply the fraction by 100 and express the result in lowest terms –Attach percent (%) sign.

8. Solutions to Exercises P. 89 5. 2.034 = 203.4%

9. Solutions to Exercises P. 89 14..2108 = 21.08%

10. Solutions to Exercises P. 89 24.

11. Homework Sec 3.1 Divisible by 3 In other words: 3, 6, 9, 12,... 83.