Practice with Proportions

Front

What is a proportion?

Back

A proportion is an equation that states that two ratios are equal.

Front

How do you find the price per unit?

Back

To find the price per unit, divide the total cost by the number of units.

Front

If 6 gallons of gasoline cost $15.00, what is the price per gallon?

Back

$2.50

Front

What is the formula to calculate the total cost based on price per unit?

Back

Total Cost = Price per Unit × Number of Units.

Front

If hamburger costs $6 for 3 pounds, how much does it cost for 10 pounds?

Back

$20

Front

What is a ratio?

Back

A ratio is a comparison of two quantities by division.

Front

How do you determine if two ratios form a proportion?

Back

Two ratios form a proportion if their cross products are equal.

Front

What is an equivalent fraction?

Back

An equivalent fraction is a fraction that represents the same value as another fraction, even though the numbers are different.

Front

What is the equivalent fraction of 5/6?

Back

10/12 is an equivalent fraction to 5/6.

Front

What does it mean if two ratios do not form a proportion?

Back

It means that the cross products of the ratios are not equal.