Understanding Rates and Unit Rates

This video tutorial explains the concept of rates and unit rates, providing real-life examples such as calculating miles per gallon and minutes per mile. It also demonstrates how to use unit rates to determine the best buy when comparing products like coffee and juice. The video emphasizes the importance of including units in rates and shows how to calculate unit rates by adjusting the denominator to one.

What is a rate?

• A comparison of two quantities with different units

• A comparison of three quantities with different units

• A comparison of two quantities with the same units

• A comparison of two quantities with no units

What is a unit rate?

• A rate with a numerator of zero

• A rate with a denominator of one

• A rate with a numerator of one

• A rate with a denominator of zero

How do you calculate miles per gallon?

• Add miles and gallons

• Multiply miles by gallons

• Divide miles by gallons

• Subtract gallons from miles

What is the unit rate of 342 miles on 15.4 gallons?

• 22.2 miles per gallon

• 15.4 miles per gallon

• 342 miles per gallon

• 1 mile per gallon

How do you find the rate of minutes per mile?

• Add minutes and miles

• Divide minutes by miles

• Subtract miles from minutes

• Multiply minutes by miles

What is the unit rate for 51 minutes over 6 miles?

• 8.5 minutes per mile

• 6 minutes per mile

• 1 minute per mile

• 51 minutes per mile

How do you determine the best buy between two products?

• Compare the size of the packages

• Compare the total cost

• Compare the brand names

• Compare the cost per unit

What is the cost per ounce for Brand A coffee?

• $0.35

• $0.37

• $0.40

• $0.25

Which brand of juice is cheaper per ounce?

• Both are the same

• Brand B

• Brand A

• Cannot be determined

What is the cost per ounce for Brand B juice?

• $0.04

• $0.06

• $0.05

• $0.07