Ratios and Rates

Front

What is a Ratio?

Back

A ratio is a comparison of two quantities.

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 a Unit Rate?

Back

A unit rate is a rate with a denominator of one.

Front

Which of the following is NOT a unit rate? 27 sandwiches in 3 weeks, 45 miles per hour, 2 cars, 1 lane.

Back

27 sandwiches in 3 weeks

Front

You buy 3 pounds of apples for $6. What is the unit rate in dollars per pound?

Back

$2 per pound

Front

How do you find a unit rate?

Back

Divide the total quantity by the number of units.

Front

What is the ratio of 4 to 8 in simplest form?

Back

1:2

Front

If there are 50 students in a class and 10 of them are girls, what is the ratio of girls to boys?

Back

1:4

Front

You travel 120 miles in 2 hours. What is your speed in miles per hour?

Back

60 miles per hour

Front

What is the ratio of 15 to 5?

Back

3:1