Solving Percent Problems with Proportions

This video tutorial covers the concept of percents and proportions, focusing on the 'is of' method to solve word problems. The instructor provides multiple examples, demonstrating how to set up and solve percent problems using proportions. The lesson includes finding unknown values and calculating percentages, with a review at the end.

What is the 'is of' method used for?

• Solving algebraic equations

• Finding the area of a circle

• Calculating the volume of a cube

• Solving percent problems

Tags

CCSS.7.EE.B.3

In the 'is of' method, where do you place the 'is' value?

• Next to the percent

• In the numerator

• In the denominator

• It doesn't matter

What is 20% of 95?

• 19

• 20

• 18

• 21

Tags

CCSS.6.RP.A.3C

If 40% of 60 is calculated, what is the result?

• 24

• 20

• 18

• 30

Tags

CCSS.6.RP.A.3C

What is 3% of 230?

• 7.0

• 7.5

• 6.9

• 6.5

Tags

CCSS.6.RP.A.3C

In the problem '45% of n is 9', what is the value of n?

• 25

• 20

• 15

• 30

Tags

CCSS.6.RP.A.3C

Convert 22.5% to a decimal.

• 22.5

• 0.0225

• 2.25

• 0.225

What percent of 24 is 30?

• 75%

• 150%

• 125%

• 100%

Three is what percent of 12?

• 20%

• 25%

• 30%

• 10%

What should you do if your answer doesn't make sense in a percent problem?

• Use a different method

• Ask someone else

• Recalculate and check your steps

• Ignore it