Ratio Tables and Double Number LInes

Front

What is a ratio table?

Back

A ratio table is a table that shows the relationship between two quantities, where the ratios are equivalent.

Front

How do you find a missing value in a ratio table?

Back

To find a missing value, use the equivalent ratios in the table to set up a proportion and solve for the unknown.

Front

What is a double number line?

Back

A double number line is a visual representation that shows two sets of numbers and their relationships, often used to illustrate ratios.

Front

How do you use a double number line to find missing values?

Back

You can find missing values by identifying the corresponding points on both lines and using the known values to calculate the unknown.

Front

If 3 apps cost $9, how much do 7 apps cost?

Back

$21 (Using the ratio: 3 apps = $9, so 1 app = $3, thus 7 apps = 7 x $3 = $21).

Front

What is the purpose of using ratio tables?

Back

Ratio tables help in solving problems involving proportional relationships and make it easier to visualize and calculate equivalent ratios.

Front

What does it mean for two ratios to be equivalent?

Back

Two ratios are equivalent if they represent the same relationship between quantities, meaning they simplify to the same fraction.

Front

How can you check if a ratio is equivalent?

Back

You can check if a ratio is equivalent by cross-multiplying the terms and seeing if the products are equal.

Front

What is the formula for finding a ratio?

Back

The formula for finding a ratio is: Ratio = Quantity A : Quantity B.

Front

If A = 45 in a ratio table, what could be the corresponding value for B if the ratio is 1:2?

Back

B would be 90, since for every 1 part of A, there are 2 parts of B.