Understanding Ratios and Proportions

The video tutorial covers the concept of proportionality through various real-life examples. It begins with a babysitting scenario to explain how pay is proportional to hours worked. The tutorial then provides exercises to determine if relationships are proportional, such as snowfall in counties, cost of renting movies, and candy prices. It concludes with a discussion on the proportionality of driving distance and gas usage.

If you earn $8 per hour babysitting, how much will you earn for 4.5 hours?

• $32

• $52

• $36

• $40

What is the ratio of pay to hours if you earn $16 for 2 hours?

• 8:1

• 4:1

• 1:1

• 2:1

How do you determine if the snowfall in inches is proportional to the hours?

• By dividing the inches by hours

• By subtracting the hours from inches

• By adding the inches and hours

• By multiplying the inches by hours

If 5 inches of snow falls in 2 hours, what is the ratio of inches to hours?

• 2.5:1

• 5:2

• 1:2.5

• 2:5

What is the constant ratio of cost to days for renting a movie?

• 1:3

• 3:1

• 1:1

• 1/3

If renting a movie for 9 days costs $3, how much does it cost per day?

• $3

• $0.33

• $9

• $1

What is the ratio of candy cost to weight if 8 pounds cost $16?

• 1:1

• 2:1

• 2:2

• 1:2

If 20 pounds of candy cost $40, what is the cost per pound?

• $1

• $2

• $3

• $4

How is the number of miles driven related to the gas used?

• They are inversely proportional

• They are directly proportional

• They are not related

• They are equal

If you drive 300 miles using 10 gallons of gas, what is the miles per gallon ratio?

• 40 mpg

• 30 mpg

• 20 mpg

• 10 mpg