Ratios, Rates, Unit Rates, Proportions Test Review

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

How do you simplify a ratio?

Back

To simplify a ratio, divide both terms by their greatest common factor (GCF).

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'.

Front

How do you find the unit rate from a total distance and time?

Back

Divide the total distance by the total time to find the unit rate (e.g., miles per hour).

Front

What is the boy:girl ratio if there are 15 boys and 20 girls?

Back

The boy:girl ratio in simplest form is 3:4.

Front

If a car travels 440 miles in 8 hours, what is the unit rate?

Back

The unit rate is 55 miles per hour.

Front

What is the ratio of wins to losses if a team has 11 wins and 1 loss?

Back

The ratio of wins to losses is 11:1.

Front

Which of the following is a unit rate: 10 miles / 2 hours or $6 for each hour?

Back

$6 for each hour is a unit rate.

Front

What is a proportion?

Back

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

Front

How can you check if two ratios form a proportion?

Back

Cross-multiply the ratios; if the products are equal, the ratios form a proportion.