Double Number Lines

Front

What is a double number line?

Back

A double number line is a visual representation that shows two sets of numbers along parallel lines, helping to illustrate the relationship between two quantities.

Front

How do you find the unit rate?

Back

To find the unit rate, divide the total quantity by the number of units. For example, if a car travels 440 miles in 8 hours, the unit rate is 440 miles ÷ 8 hours = 55 miles per hour.

Front

What does the term 'ratio' mean?

Back

A ratio is a comparison of two quantities, showing how many times one value contains or is contained within the other.

Front

If 18 people go down a slide in 3 minutes, how many people can go down in 1 minute?

Back

6 people can go down the slide in 1 minute.

Front

What is the unit rate of $40 for 5 pounds of concrete?

Back

The unit rate is $8 per pound.

Front

How do you use a double number line to solve problems?

Back

You can use a double number line to find equivalent ratios and unit rates by aligning the two quantities and using the visual to make calculations easier.

Front

What is the unit rate for Will spending $3.75 for 3 pounds of gummy bears?

Back

The unit rate is $1.25 per pound.

Front

If the ratio of red paint to yellow paint is 1:5, how many teaspoons of yellow paint are in 4 batches?

Back

In 4 batches, there are 20 teaspoons of yellow paint.

Front

What is the purpose of a double number line in problem-solving?

Back

The purpose is to visually represent relationships between two quantities, making it easier to understand ratios and rates.

Front

How can you determine how long it takes for fewer people to go down a slide using a double number line?

Back

You can find the time for fewer people by using the ratio of people to time from the double number line.