Ratios and Rates Review 2021

Front

What is a ratio?

Back

A ratio is a comparison of two quantities that shows the relative size of one quantity to another, often expressed as 'a to b' or a:b.

Front

How do you calculate the unit price?

Back

To calculate the unit price, divide the total price by the number of units (e.g., price per pound).

Front

If a bag of carrots costs $2.50 for 5 lbs, what is the cost per pound?

Back

$0.50 per pound.

Front

What is a rate?

Back

A rate is a specific kind of ratio that compares two different units, such as speed (miles per hour) or price per item.

Front

If Darius runs 300 meters in 50 seconds, what is his speed in meters per second?

Back

6 meters per second.

Front

What is the relationship between tenants and cars if the ratio is 3:5?

Back

For every 3 tenants, there are 5 cars.

Front

If there are 30 tenants, how many cars are there in a 3:5 ratio?

Back

50 cars.

Front

How do you determine which option is a better buy?

Back

Compare the unit prices of each option to see which one costs less per unit.

Front

If a 20 lb bag of cat food costs $15.80, what is the unit price?

Back

$0.79 per pound.

Front

If a 30 lb bag of cat food costs $23.10, what is the unit price?

Back

$0.77 per pound.