Percents: Solving for a Whole

The ratio used to find percent is...

• part/whole = %/100

• part/whole = 100 / %

• whole/part= %/ 100

What is the set up for solving percents using Proportions?

• is/of = %/100

• 100/% = is/of

• 2x-3 = b

If a shirt is on sale for $9 because it was 75% off, then what was the original price of the shirt?

• $12

• $67

• $675

• $3

Using a percent proportion, what is the denominator of the percent as a fraction?

• 200

• 100

• the part

• the missing number

Which setup can you use to solve the problem: What is 20% of 45?

Which setup can you use to solve the problem: 25 is what percent of 200?

What are you looking for in the following question:

30 is 50% of what number?

• Part

• Whole

• Percent

• Percent Change

Which setup can you use to solve the problem: 30 is 50% of what number?

What are you looking for in the following question:

20 is 90% of what number?

• Part

• Whole

• Percent

• Percent Change

Which setup can you use to solve the problem?:

The population of a small town rose from 2000 to 3000. By what percent did the population increase?