Determining Unit Rate Using Multiplicative Inverse

This video tutorial teaches how to determine unit rates using the multiplicative inverse of a measurement. It explains the concept of unit rates, provides examples like the Helby family's milk consumption and Michael's running speed, and clarifies common misunderstandings about additive versus multiplicative relationships. The lesson emphasizes efficient methods for calculating unit rates and concludes with a summary of the key concepts.

What is a unit rate?

• A comparison of a quantity to one unit of another quantity

• A comparison of two different quantities

• A sum of two quantities

• A difference between two quantities

Which of the following pairs are multiplicative inverses?

• 6 and 1/6

• 5 and 1/5

• 4 and 1/4

• 3 and 1/3

How can you find a unit rate more efficiently?

• By multiplying by the multiplicative inverse

• By dividing the quantities

• By using a table

• By adding the quantities

What is the unit rate of milk consumption for the Helby family?

• 1 gallon per day

• 7/18 gallons per day

• 3/4 gallon per day

• 1/2 gallon per day

What is a common misunderstanding about equivalent ratios?

• They are always additive

• They are always multiplicative

• They are neither additive nor multiplicative

• They are both additive and multiplicative

What is the correct unit rate for Michael's running speed?

• 6 mph

• 7 4/5 mph

• 8 mph

• 5 mph

How do you calculate a unit rate for speed?

• By subtracting time from distance

• By multiplying distance by time

• By dividing distance by time

• By adding distance and time