Ratios and 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 rate?

Back

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

Front

How do you find a unit rate?

Back

To find a unit rate, divide the quantity by the number of units to express the rate per one unit.

Front

If the ratio of cats to dogs is 2:3 and there are 12 cats, how many dogs are there?

Back

18 dogs.

Front

What is the unit rate of a person who can type 240 words in 4 minutes?

Back

60 words per minute.

Front

If a car travels 150 miles in 3 hours, what is its speed in miles per hour?

Back

50 miles per hour.

Front

How do you compare two rates?

Back

Convert both rates to the same unit and then compare the resulting values.

Front

If a cheetah runs 60 feet in 4 seconds, what is its speed in feet per second?

Back

15 feet per second.

Front

What is the ratio of 8 apples to 12 oranges in simplest form?

Back

2:3.

Front

If a recipe calls for 2 cups of flour for every 3 cups of sugar, what is the ratio of flour to sugar?

Back

2:3.