Ratio Tables and Proportions

Front

What is a ratio?

Back

A ratio is a comparison of two quantities that shows the relative size of one quantity to another, often expressed as 'a to b' or a:b.

Front

What is a proportion?

Back

A proportion is an equation that states that two ratios are equal, often used to solve for an unknown quantity.

Front

If 14 sticks of pepperoni make 28 pizzas, how many sticks are needed for 36 pizzas?

Back

18 sticks.

Front

If there are 5 ice cream cones for every 3 brownies, how many cones are sold if 24 brownies are sold?

Back

40 ice cream cones.

Front

What is a ratio table?

Back

A ratio table is a tool used to organize pairs of numbers that form equivalent ratios, helping to visualize relationships between quantities.

Front

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

Back

To find a missing value, use equivalent ratios to set up a proportion and solve for the unknown.

Front

What is the formula for finding equivalent ratios?

Back

If a/b = c/d, then a, b, c, and d are in equivalent ratios.

Front

In mixing paint, if the ratio of red to yellow is 3:5, how much yellow is needed for 9 oz of red?

Back

15 oz of yellow paint.

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 quantity is the denominator.

Front

How can you check if two ratios are equivalent?

Back

Cross-multiply the ratios; if the products are equal, the ratios are equivalent.