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
Percents are: hundredths, or parts of 100
Summary To Write a Percent as a Decimal: –Delete the percent sign –Move the decimal point two places to the left.
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.
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.
Summary To Write a Decimal as a Percent: –Move decimal point two places to the right –Attach percent (%) sign.
Summary To Write a Fraction as a Percent: –Multiply the fraction by 100 and express the result in lowest terms –Attach percent (%) sign.
Solutions to Exercises P = 203.4%
Solutions to Exercises P = 21.08%
Solutions to Exercises P
Homework Sec 3.1 Divisible by 3 In other words: 3, 6, 9, 12,