Proportions

Front

What is a proportion?

Back

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

Front

How do you solve a proportion?

Back

To solve a proportion, cross-multiply the terms and then solve for the unknown variable.

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 the formula for finding the unit rate?

Back

The unit rate is found by dividing the first quantity by the second quantity.

Front

If 3 pounds of meat cost $6, how much does 1 pound cost?

Back

$2 per pound.

Front

What is the average speed formula?

Back

Average speed = Total distance / Total time.

Front

If a student scores 45 out of 60 on a test, what is their score as a percentage?

Back

75%.

Front

What does it mean if two ratios are equivalent?

Back

It means that they represent the same relationship between quantities.

Front

How can you express the ratio of 5 apples to 10 oranges?

Back

5:10 or simplified to 1:2.

Front

What is the relationship between ratios and fractions?

Back

Ratios can be expressed as fractions, where the first quantity is the numerator and the second is the denominator.