90 likes | 240 Views
Calculating the Percentage of a Whole. Week 3 LSP 120 Joanna Deszcz. The Formula. Part = % Whole Whole means the entire pie. Part means one of the shaded regions or pieces of the pie. 3 Ways to Think about it. Solving Problems. 2 Methods Method 1
E N D
Calculating the Percentage of a Whole Week 3 LSP 120 Joanna Deszcz
The Formula • Part = % Whole • Whole means the entire pie. • Part means one of the shaded regions or pieces of the pie.
Solving Problems • 2 Methods • Method 1 • Identify the 2 given numbers as the part, whole or % of the problem • Decide which version of the part/whole formula will help you answer the question • Always use the decimal version of the %
Solving Problems • Method 2 • Remember the formula • Fill in the given information • Solve for the missing variable • Always use the decimal version of the %
Number Drills • 2 is what percentage of 10? • 20% of what number is 2? • What is 20% of 10? • What is 233% of 71? • What is .7% of 50?
Example • In 2001, 6,113 applicants were accepted to DePaul. This represents about a 72% acceptance rate. Of the students who were accept, 2,050 students enrolled at the university. • a. How many students in 2001 applied for admission at DePaul? • b. What percent of the students who were accepted to DePaul actually enrolled at the University?
Apply what you learned • Complete the Percent Activity in your groups.