Rates and Unit Rates

Front

What is a ratio?

Back

A ratio is a comparison of two quantities, showing how many times one value contains or is contained within the other.

Front

What is a unit rate?

Back

A unit rate is a ratio that compares a quantity to one unit of another quantity, often expressed as 'per' something.

Front

How do you find the ratio of two quantities?

Back

To find the ratio, divide each quantity by the greatest common factor and express it in simplest form.

Front

What is the ratio of dogs to all pets if there are 2 dogs, 4 cats, and 5 hamsters?

Back

2:11

Front

If you spend $40 on 5 pounds of concrete, what is the unit rate in dollars per pound?

Back

$8 per pound

Front

What is the ratio of boys to girls if there are 13 boys and 10 girls in a classroom?

Back

13 to 10

Front

How do you calculate miles per hour?

Back

To calculate miles per hour, divide the total miles traveled by the total hours taken.

Front

If Alicia drove 182.4 miles in 3 hours, what was her speed in miles per hour?

Back

60.8 miles per hour

Front

What does it mean when a rate compares two different units?

Back

It means that the rate expresses a relationship between two different types of measurements, such as distance and time.

Front

What is the formula for calculating a unit rate?

Back

Unit Rate = Total Quantity / Number of Units.