Percentage Calculations and Word Problems

This video tutorial covers Math 6 Unit 6 Lesson 7, focusing on percentages. It begins with an introduction to percentages and mental math exercises using bottles as examples. The lesson progresses to solving percentage problems using equations, both in fraction and decimal forms. It then explores finding unknowns in percentage equations. The tutorial includes a practical application involving calculating the adult weights of puppies using percentages. The session concludes with a summary and homework instructions.

If Bottle A contains 4 oz, which is 25% of Bottle B, how much does Bottle B contain?

• 20 oz

• 12 oz

• 8 oz

• 16 oz

What is the percentage of water in Bottle D compared to Bottle B if Bottle D contains 12 oz?

• 25%

• 50%

• 75%

• 100%

Is 60% of 400 equal to 87?

• Cannot be determined

• No

• Sometimes

• Yes

What is 60% of 200?

• 240

• 60

• 120

• 87

If 60% of a number is 87, what is the number?

• 200

• 100

• 87

• 145

What is the value of C if 60% of C is 43.2?

• 72

• 100

• 60

• 43.2

If 38% of E is 190, what is E?

• 100

• 38

• 190

• 500

If a puppy weighs 8 lbs, which is 25% of its adult weight, what is the adult weight?

• 16 lbs

• 24 lbs

• 32 lbs

• 40 lbs

If 40% of X is 35, what is X?

• 70

• 87.5

• 35

• 140

If 60% of the questions on an exam is 9, how many questions are on the exam?

• 18

• 12

• 9

• 15