14 Ratios, Rates & Unit Rates

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 simplify a ratio?

Back

To simplify a ratio, divide both terms by their greatest common factor (GCF) until no further simplification is possible.

Front

What is a rate?

Back

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

Front

What is a unit rate?

Back

A unit rate is a rate in which the second quantity is one unit, such as 60 miles per hour (60 miles in 1 hour).

Front

If 9 candy bars cost $13.50, what is the price per candy bar?

Back

$1.50 per candy bar.

Front

What is the ratio of books not read to all books if you have 29 books and read 18?

Back

11 : 29.

Front

What is the ratio of dimes to nickels if there are 10 dimes and 5 nickels?

Back

2 to 1.

Front

Which rate is equivalent to 15 miles per hour?

Back

30 miles in 2 hours.

Front

What is the ratio of blue marbles to red marbles if there are 3 blue and 7 red?

Back

3 : 7.

Front

How do you find the unit rate from a total cost and quantity?

Back

Divide the total cost by the quantity to find the cost per unit.