Unit 0 (Review): Equivalent Ratios & Ratio Tables

Front

What is a ratio?

Back

A ratio is a comparison of two quantities, showing the relative size of one quantity to another, often expressed in the form a:b.

Front

What does it mean for two ratios to be equivalent?

Back

Two ratios are equivalent if they represent the same relationship between quantities, meaning they can be simplified to the same fraction.

Front

How can you determine if two fractions are equivalent?

Back

You can determine if two fractions are equivalent by cross-multiplying and checking if the products are equal.

Front

What is a ratio table?

Back

A ratio table is a tool used to organize pairs of numbers that form equivalent ratios, often used to find missing values.

Front

How do you find a missing value in a ratio table?

Back

To find a missing value in a ratio table, you can use equivalent ratios to set up a proportion and solve for the unknown.

Front

If 10 pencils cost $21, what is the cost of 1 pencil?

Back

The cost of 1 pencil is $2.10, calculated by dividing $21 by 10.

Front

What is the unit rate?

Back

The unit rate is a ratio that compares a quantity to one unit of another quantity, often used to express cost per item.

Front

How do you solve for a missing value in a proportion?

Back

To solve for a missing value in a proportion, you can cross-multiply and then divide to isolate the variable.

Front

What is the relationship between the ratio of blue jays to robins in the problem given?

Back

The ratio of blue jays to robins is 10:5, which simplifies to 2:1, meaning there are twice as many blue jays as robins.

Front

How do you convert a ratio to a fraction?

Back

To convert a ratio to a fraction, you write the first quantity as the numerator and the second quantity as the denominator.