Comparing Costs and Rates

The video tutorial explains how to compare costs by calculating unit prices using division. It covers examples of determining the cost per protein bar and hourly rates for services. Additionally, it demonstrates how to calculate miles per gallon for cars and compare them. The tutorial emphasizes the importance of reducing problems to a single unit for easier comparison and provides a brief overview of converting units for further learning.

What mathematical operation is suggested for comparing data in different forms?

• Division

• Addition

• Multiplication

• Subtraction

How do you calculate the cost of one protein bar if four bars cost seven dollars?

• Add 4 to 7

• Subtract 4 from 7

• Multiply 7 by 4

• Divide 7 by 4

Which company offers the cheapest protein bar based on the given example?

• Third company

• All are the same

• Second company

• First company

What is the cost per protein bar for the second company?

• $1.25

• $2.00

• $1.50

• $1.75

What is the cost per protein bar for the third company?

• $2.50

• $2.00

• $1.00

• $1.50

What is the cost per hour for the first company if they charge $46 for two hours?

• $23

• $25

• $30

• $20

How much does the second company charge per hour if they charge $100 for five hours?

• $18

• $20

• $15

• $25

What is the difference in hourly cost between the two companies?

• $4

• $2

• $1

• $3

What is the total cost difference over eight hours between the two companies?

• $16

• $28

• $20

• $24

Which method can also be used to find the total cost difference over eight hours?

• Multiplication

• Subtraction

• Addition

• Division