Percentage and Proportional Relationships

Mrs. Groovy Groves guides students through lesson nine, focusing on percentages. The lesson covers calculating percentages of snacks sold, finding equivalent percentage values, solving percentage problems, matching percentage changes to diagrams, and creating equations to relate cars to passengers. The video emphasizes understanding fractions, decimals, and percentages, and applying these concepts to real-world scenarios.

What percentage of the total snacks sold were fruit cups?

• 12.5%

• 18.75%

• 43.75%

• 25%

If 6 veggie sticks were sold, what percentage of the total snacks does this represent?

• 18.75%

• 25%

• 12.5%

• 43.75%

Which of the following is equivalent to 3.5% of 20?

• 0.35

• 70

• 7

• 0.7

What is the decimal equivalent of 22.6%?

• 0.0226

• 22.6

• 2.26

• 0.226

If a bakery used 560 kg of sugar last month, how much did it use this month with a 30% increase?

• 730 kg

• 728 kg

• 560 kg

• 588 kg

Which diagram represents a 15% decrease in the amount of apples compared to last year?

• Diagram D

• Diagram C

• Diagram B

• Diagram A

If the amount of cherries increased by 15% this year, which diagram would represent this change?

• Diagram A

• Diagram B

• Diagram C

• Diagram D

What equation relates the number of cars (n) to the number of passengers (p) if each car holds 4 passengers?

• p = 4n

• p = 4 + n

• p = n + 4

• p = n/4

How many passengers can fit in 78 cars if each car holds 4 passengers?

• 300

• 304

• 320

• 312

If you have 78 passengers, how many cars are needed if each car holds 4 passengers?

• 18

• 19

• 20

• 21