Determine the Unit Rate-Cost for ONE | 6.RP.A.2

The video tutorial explains how to determine the unit rate, which is the cost per single item. It uses examples from 1999 and 2018, where the US Postal Service sold stamps at different prices. The tutorial guides viewers through calculating the unit rate for each year using division and proportion. In 1999, the unit rate was $0.33 per stamp, while in 2018, it was $0.50 per stamp. The video concludes by summarizing the change in unit rates over the years.

What is the definition of a unit rate?

• The cost of two items

• The total cost of multiple items

• The cost of one item

• The average cost of items

How many stamps were sold for $4.95 in 1999?

• 20 stamps

• 10 stamps

• 12 stamps

• 15 stamps

What is the unit rate for stamps in 1999?

• $0.40 per stamp

• $0.33 per stamp

• $0.50 per stamp

• $0.25 per stamp

How many stamps were sold for $6.00 in 2018?

• 10 stamps

• 12 stamps

• 15 stamps

• 20 stamps

What is the unit rate for stamps in 2018?

• $0.25 per stamp

• $0.33 per stamp

• $0.40 per stamp

• $0.50 per stamp

What was the change in unit rate from 1999 to 2018?

• Increased from $0.33 to $0.50

• Decreased from $0.50 to $0.33

• Remained the same

• Increased from $0.25 to $0.40

What mathematical operation is primarily used to find the unit rate?

• Division

• Multiplication

• Subtraction

• Addition