Using Ratios: Word Problems

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 divisor (GCD).

Front

If the ratio of boys to girls in a class is 6:5 and there are 18 boys, how many girls are there?

Back

15 girls.

Front

What is the ratio of wins to losses if a team won 100 games and lost 60?

Back

The simplified ratio is 5 to 3.

Front

If Carl spends $5 on movies for every $15 on video games, what is the ratio of movies to video games?

Back

The ratio is 1 to 3.

Front

How do you find a missing value in a ratio?

Back

Set up a proportion using the known values and solve for the unknown value.

Front

If Tyler scored 22 home runs in 7 games, how many home runs would he score in 21 games?

Back

66 home runs.

Front

What is a proportion?

Back

A proportion is an equation that states that two ratios are equal.

Front

If there are 42 people walking in 2 rows, how many people are in 1 row?

Back

21 people in 1 row.

Front

What does it mean to scale a ratio?

Back

To scale a ratio means to multiply or divide both terms of the ratio by the same number.