Ratio Tables and Unit Rates Flashcard

Front

What is a ratio table?

Back

A ratio table is a table that shows the relationship between two quantities, displaying pairs of numbers that maintain a constant ratio.

Front

What does it mean for a table to be proportional?

Back

A table is proportional if the ratios of the quantities in the table are equivalent, meaning they maintain a constant relationship.

Front

How do you determine if a table is proportional?

Back

To determine if a table is proportional, check if the ratios of corresponding values are the same across the table.

Front

What is a unit rate?

Back

A unit rate is a comparison of two different quantities where one of the quantities is expressed as one unit.

Front

How do you calculate a unit rate?

Back

To calculate a unit rate, divide the quantity of one item by the quantity of another item, ensuring the second quantity is one.

Front

If Justin can type 408 words in 4 minutes, how many words can he type in 1 minute?

Back

102 words per minute.

Front

Which is the better buy: a 12 pack of Coke for $3.50 or a 6 pack for $1.80?

Back

The 12 pack of Coke is the better buy.

Front

What is the formula for finding the unit rate?

Back

Unit Rate = Total Quantity / Number of Units.

Front

If a table shows the values (2, 4), (3, 6), (4, 8), is it proportional?

Back

Yes, because the ratios (2:4, 3:6, 4:8) are equivalent (1:2).

Front

What is the significance of a proportional relationship in real life?

Back

Proportional relationships help in understanding rates, such as speed, pricing, and scaling in various contexts.