Study Guide for proportion flashcard

Front

What is a unit rate?

Back

A comparison of two quantities where the denominator is always 1 unit.

Front

How can I tell if a relationship is proportional in a table?

Back

Divide y by x.

Front

What is a proportion?

Back

An equation that states that two ratios are equal.

Front

If 3 apples cost $6, what is the unit rate?

Back

$2 per apple.

Front

What is the formula for finding a unit rate?

Back

Unit Rate = Total Quantity / Number of Units.

Front

How do you solve a proportion?

Back

Cross-multiply and then divide.

Front

What does it mean for two quantities to be proportional?

Back

They maintain a constant ratio.

Front

If 4 books take 10 hours to read, how long will 8 books take?

Back

20 hours.

Front

What is the constant of proportionality?

Back

The constant ratio in a proportional relationship.

Front

If k/4 = 5, what is k?

Back

k = 20.