Exploring 6.1 Percent Proportions

This video tutorial teaches how to calculate percents using the proportion method. It explains why some percents can be greater than 100 and provides examples to illustrate the concept. The video covers setting up percent proportions, solving for missing values, and includes practice problems to reinforce learning.

Why can some percents be greater than 100?

• Because the whole is always 100

• Because the part is equal to the whole

• Because the part is greater than the whole

• Because the part is less than the whole

What is the formula used to set up a percent proportion?

• Part over whole equals percent over 100

• Whole over part equals percent over 100

• Part over percent equals whole over 100

• Percent over part equals whole over 100

In a percent proportion, what does the whole always represent?

• The part

• 100%

• 50%

• The percent

What number is 37.5% of 484?

• 181.5

• 150

• 484

• 200

In the example where 24 is 120% of a number, what is the whole?

• 100

• 120

• 24

• 20

If 24 is 120% of a number, what is that number?

• 24

• 20

• 28.8

• 30

4 is what percent of 5?

• 80%

• 100%

• 120%

• 50%

When solving a proportion, what operation is used after cross-multiplying?

• Multiplication

• Division

• Subtraction

• Addition

In the practice problem, if there are 90 students out of 300, what is the percent?

• 100%

• 90%

• 60%

• 30%

If you have 46 bottles of grapes out of 400 total bottles, what percent is that?

• 11.5%

• 15%

• 20%

• 25%