Gr. 7 Open Up Unit 4: Proportional Relationships and Percentages

Front

What is the constant of proportionality in the equation y = 14x?

Back

14

Front

How do you solve a proportion?

Back

To solve a proportion, cross-multiply and then divide to find the unknown value.

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 is constant.

Front

How can you determine if a graph represents a proportional relationship?

Back

A graph represents a proportional relationship if it is a straight line that passes through the origin.

Front

What is the formula for finding the unit rate?

Back

The unit rate is found by dividing the total amount by the number of units.

Front

If y = kx, what does k represent?

Back

k represents the constant of proportionality.

Front

How do you find the cost per item when given the total cost and number of items?

Back

Divide the total cost by the number of items.

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 is constant.

Front

What is the relationship between percentages and proportions?

Back

Percentages are a way to express a proportion as a fraction of 100.

Front

How do you convert a fraction to a percentage?

Back

To convert a fraction to a percentage, divide the numerator by the denominator and multiply by 100.