Proportions

Front

What is a proportion?

Back

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

Front

How do you find a missing value in a proportion?

Back

To find a missing value in a proportion, you can cross-multiply and solve for the unknown.

Front

What is the formula for calculating speed?

Back

Speed = Distance / Time.

Front

If a car travels 420 miles in 8 hours, what is its speed?

Back

Speed = 420 miles / 8 hours = 52.5 miles per hour.

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

Write the ratio of 10 clown fish to 12 goldfish.

Back

10:12.

Front

What does it mean if two ratios are equivalent?

Back

It means that they represent the same relationship between quantities.

Front

Back

m = 30.

Front

How do you simplify a ratio?

Back

To simplify a ratio, divide both terms by their greatest common divisor.

Front

What is the relationship between ratios and fractions?

Back

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