Calculating Cycles and Costs

The video tutorial covers writing and evaluating expressions using multiplication and division. It includes exercises on calculating the number of apples in bags, understanding beverage container deposits, determining subway fares, and analyzing pendulum cycles. Each example demonstrates how to use expressions to solve real-world problems, emphasizing the relationship between multiplication and division.

If a market sells bags of apples with 3 apples each, how many apples are in 4 bags?

• 9 apples

• 12 apples

• 15 apples

• 18 apples

How many bags are needed if a truck delivers 600 apples, given each bag holds 3 apples?

• 250 bags

• 100 bags

• 150 bags

• 200 bags

What is the refund in dollars for returning 50 beverage containers in New York State?

• $0.50

• $1.50

• $2.50

• $3.50

If Gavin needs to earn $4.50 from returning cans, how many cans must he return?

• 90 cans

• 75 cans

• 60 cans

• 45 cans

What is the cost of 5 subway rides if each ride costs $2.50?

• $12.50

• $20.00

• $10.00

• $15.00

How many rides can a commuter take with $175 if each ride costs $2.50?

• 50 rides

• 60 rides

• 80 rides

• 70 rides

A pendulum swings 12 times every 15 seconds. How many cycles does it complete in 45 seconds?

• 36 cycles

• 48 cycles

• 60 cycles

• 24 cycles

If a pendulum completes 16 cycles, how much time has elapsed?

• 15 seconds

• 20 seconds

• 25 seconds

• 30 seconds

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

• 5/6 * s

• 3/4 * s

• 2/3 * s

• 4/5 * s

In a different experiment, how many cycles does a pendulum complete in 35 seconds?

• 20 cycles

• 25 cycles

• 28 cycles

• 30 cycles