Refund Calculations and Unit Costs

In this lesson, students learn to write and evaluate expressions using multiplication and division. The video covers exercises involving calculating the number of apples in bags, refunds for beverage cans, and subway fares. Students identify patterns and write expressions to solve problems, enhancing their understanding of mathematical operations and expressions.

What is the main focus of Lesson 20?

• Solving equations using multiplication and division

• Graphing linear equations

• Writing and evaluating expressions using addition and subtraction

• Writing and evaluating expressions using multiplication and division

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

• 15 apples

• 12 apples

• 10 apples

• 9 apples

What expression represents the number of apples in 'B' bags?

• B/3

• B - 3

• B + 3

• 3B

How many bags are needed for 600 apples if each bag holds 3 apples?

• 200 bags

• 150 bags

• 250 bags

• 100 bags

What is the refund for returning 10 beverage cans in New York State?

• $1.50

• $2.00

• $1.00

• $0.50

What expression calculates the refund for 'C' cans?

• 0.05C

• C - 0.05

• C/0.05

• 0.05 + C

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

• $10.10

• $11.20

• $11.10

• $12.10

How many cans does Gavin need to collect to earn $4.50?

• 90 cans

• 95 cans

• 85 cans

• 80 cans

What is the cost of a single subway ride?

• $2.00

• $2.50

• $1.50

• $3.00

If two subway rides cost $5, what is the cost of one ride?

• $3.00

• $3.50

• $2.00

• $2.50