Pendulum Cycles and Basic Arithmetic

The video tutorial covers sixth grade module four, lesson 20, focusing on practical math examples. It includes calculating the number of apples in bags, refunds for returned beverage cans, subway fare costs, and pendulum cycles. Each example uses multiplication and division to solve real-world problems, enhancing students' understanding of these mathematical operations.

If each bag contains 3 apples, how many apples are there in 4 bags?

• 9 apples

• 12 apples

• 18 apples

• 15 apples

What is the expression for the number of apples in 'b' bags?

• b + 3

• 3b

• b - 3

• b/3

If you have 600 apples, how many bags are needed if each bag holds 3 apples?

• 100 bags

• 150 bags

• 200 bags

• 250 bags

How much refund in dollars do you get for returning 10 cans, if each can gives a 5-cent refund?

• $0.50

• $1.00

• $2.00

• $1.50

What is the expression for the refund amount for 'c' cans?

• 0.05c

• 5c

• c + 0.05

• c/5

If Brett returns 222 cans, how much money does he receive?

• $13.10

• $12.10

• $11.10

• $10.10

How much does 5 subway rides cost if each ride is $2.50?

• $12.50

• $15.00

• $10.00

• $17.50

If a commuter spends $175 on subway rides, how many rides did they take?

• 80 rides

• 70 rides

• 60 rides

• 50 rides

How many cycles does a pendulum complete in 30 seconds if it swings 12 times every 15 seconds?

• 30 cycles

• 36 cycles

• 24 cycles

• 18 cycles

What is the expression for the number of cycles a pendulum swings in 's' seconds?

• 12/15 * s

• s/12

• s/15

• 15/12 * s