Flashcard #2-3: Solving Percent Proportions (R)

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

How do you determine if a table shows a proportional relationship?

Back

A table shows a proportional relationship if the ratios of the corresponding values are equal.

Front

What is the formula to calculate a percentage of a number?

Back

Percentage = (Part/Whole) x 100.

Front

If Karmel makes an 8% commission on a $2,800 sale, how much does he earn?

Back

$224.

Front

What is the original price of an item if it is sold for $150 at a 30% discount?

Back

$500.

Front

How do you find the constant of proportionality?

Back

The constant of proportionality can be found by dividing the output value by the input value in a proportional relationship.

Front

What is the constant of proportionality if Craig earns $37 for 4 hours?

Back

$9.25 per hour.

Front

Which equation represents a proportional relationship?

Back

y = kx, where k is a constant.

Front

What is an example of a non-proportional equation?

Back

y = 2x - 3.

Front

How do you identify a proportional relationship in a graph?

Back

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