Proportional Relationships and Unit Rate Flashcard

Front

What is a proportional relationship?

Back

A proportional relationship is a relationship between two quantities where the ratio of one quantity to the other quantity is constant.

Front

Define unit rate.

Back

A unit rate is a ratio that compares a quantity to one unit of another quantity, often expressed as 'per' something.

Front

How do you find the cost per ounce of an item?

Back

To find the cost per ounce, divide the total cost by the total number of ounces.

Front

If Jalen combines 4 ounces of pineapple juice with 6 ounces of orange juice, what is the ratio of pineapple juice to orange juice?

Back

The ratio of pineapple juice to orange juice is 4:6, which simplifies to 2:3.

Front

What is the constant of proportionality?

Back

The constant of proportionality is the constant ratio in a proportional relationship, often represented by 'k'.

Front

How can you determine if a relationship is proportional using a table?

Back

A relationship is proportional if the ratios of the corresponding values are constant throughout the table.

Front

What does it mean if the cost increases by a fixed amount for each additional hour?

Back

It means that the relationship between time and cost is proportional, with a constant rate of change.

Front

If Kenny types 280 words in 7 minutes, what is his typing rate in words per minute?

Back

Kenny's typing rate is 40 words per minute (280 words ÷ 7 minutes).

Front

How do you set up a proportion to solve for an unknown?

Back

To set up a proportion, create a fraction that represents the known ratio and set it equal to a fraction that represents the unknown ratio.

Front

What is the formula for finding the unit rate?

Back

The formula for finding the unit rate is: Unit Rate = Total Quantity / Number of Units.