Proportional Relationships- Review 12.6

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

What does it mean when two ratios are equivalent?

Back

It means that they represent the same relationship or value, even if the numbers are different.

Front

How do you find the cost per item?

Back

To find the cost per item, divide the total cost by the number of items.

Front

If 5 pounds of grapes cost $12.50, what is the cost per pound?

Back

$2.50 per pound.

Front

What is the formula for finding a unit rate?

Back

Unit Rate = Total Quantity / Number of Units.

Front

If 3 apples cost $9, what is the cost per apple?

Back

$3 per apple.

Front

What is a ratio?

Back

A ratio is a comparison of two quantities by division.

Front

If 4 boxes of noodles cost $16, what is the cost per box?

Back

$4 per box.

Front

What is the relationship between proportional relationships and graphs?

Back

In a graph, proportional relationships are represented by straight lines that pass through the origin.

Front

What is the cost per pound of bananas if 10 pounds cost $12.50?

Back

$1.25 per pound.