Ratios & Proportions Flashcardizz

Front

What is the constant of proportionality?

Back

The constant of proportionality is the ratio between two proportional quantities, often represented as 'k' in the equation y = kx.

Front

How do you find the unit price of an item?

Back

To find the unit price, divide the total price by the number of units. For example, for Sargento cheese slices, $2.48 for 10 slices gives a unit price of $0.248 per slice.

Front

If there are 75 pieces of candy in a 15 oz bag, how many pieces of candy are there per ounce?

Back

5 pieces per ounce (75 pieces ÷ 15 oz = 5 pieces/oz).

Front

What does it mean for a table to be proportional?

Back

A table is proportional if the ratio of the values in one column to the values in another column remains constant.

Front

How can you find the constant of proportionality?

Back

The constant of proportionality can be found by calculating the unit rate, which is the ratio of one quantity to another when one of the quantities is 1.

Front

What is a ratio?

Back

A ratio is a comparison of two quantities, showing how many times one value contains or is contained within the other.

Front

What is a proportion?

Back

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

Front

How do you determine if two ratios are equivalent?

Back

Two ratios are equivalent if their cross products are equal.

Front

What is the unit rate?

Back

The unit rate is a rate in which the second quantity is one unit. For example, if a car travels 300 miles in 5 hours, the unit rate is 60 miles per hour.

Front

What is the formula for finding a unit price?

Back

Unit Price = Total Price ÷ Number of Units.