Constant of proportionality and Unit Rate

Front

What is the constant of proportionality?

Back

The constant of proportionality is the ratio between two proportional quantities, indicating how one quantity changes in relation to another.

Front

Define unit rate.

Back

A unit rate is a comparison of two different quantities when they are combined together, expressed as a quantity per one unit of another quantity.

Front

How do you find the unit rate from a recipe?

Back

To find the unit rate from a recipe, divide the quantity of one ingredient by the quantity of another ingredient to determine how much of one is needed per unit of the other.

Front

What is the unit rate of 3/4 cup of brown sugar for every 3 eggs?

Back

4 eggs per cup.

Front

How do you determine if a relationship is proportional?

Back

A relationship is proportional if the ratio between the two quantities remains constant.

Front

What is the constant of proportionality in the relationship where y = 3x?

Back

The constant of proportionality is 3.

Front

If a faucet leaks 5/8 quart in 15 minutes, how do you find the leak rate per hour?

Back

Multiply the leak rate by 4 (since there are 4 fifteen-minute intervals in an hour) to find the leak rate per hour.

Front

Calculate the leak rate per hour if a faucet leaks 5/8 quart in 15 minutes.

Back

5/2 quarts per hour.

Front

What is the unit cost of an item?

Back

The unit cost is the total cost divided by the number of items purchased.

Front

If 15 pizzas cost $97.50, what is the unit cost per pizza?

Back

$6.50 per pizza.