Finding a Whole and a Percent 2/16/16 Rule Finding a Whole Part = % • Whole Use a variable to represent the unknown value Do the opposite operation to get the variable by itself Amy spent $3.50 on snacks. That amount was 15% of her weekly allowance. What is Amy’s weekly allowance? Part: $3.50 Percent: 15% Whole: ? $3.50 = 15% • ? Convert the percent to a decimal $3.50 = .15 • ? Divide to get the variable by itself Amy’s weekly allowance is $23.33

Finding a Whole and a Percent 2/16/16 Finding a Percent Out of the 45 pieces of Valentines Day candy she was given, Michelle ate 32 of them over the weekend. What percent of her candy did Michelle eat? Part: 32 pieces Percent: ? Whole: 45 pieces 32 = % • 45 Divide to get the variable by itself Convert the decimal to a percent by multiplying it by 100 Michelle ate 71.1% of her candy