Ratios, unit rates and percents with double number lines

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 find a unit rate?

Back

To find a unit rate, divide the quantity of one item by the quantity of another item to determine how much of one item corresponds to one unit of the other.

Front

What is a double number line?

Back

A double number line is a visual representation that shows two related quantities along two parallel lines, helping to illustrate ratios and relationships between them.

Front

If the ratio of red paint to yellow paint is 2:5, how many teaspoons of yellow paint are in 4 batches if each batch uses 10 teaspoons of paint?

Back

20 teaspoons of yellow paint.

Front

What does the ratio 8:23 represent in a pet store with 8 cats, 12 dogs, and 3 rabbits?

Back

The ratio 8:23 represents the number of cats compared to the total number of animals (cats + dogs + rabbits).

Front

How do you complete a ratio table?

Back

To complete a ratio table, identify the relationship between the quantities, and use multiplication or division to find missing values that maintain the same ratio.

Front

What is the price per ticket if the total cost for 4 tickets is $252?

Back

$63.00 per ticket.

Front

What is a percent?

Back

A percent is a way of expressing a number as a fraction of 100, often used to compare relative sizes or amounts.

Front

How do you convert a fraction to a percent?

Back

To convert a fraction to a percent, divide the numerator by the denominator and then multiply by 100.

Front

What is the relationship between ratios and proportions?

Back

Ratios compare two quantities, while proportions state that two ratios are equal.