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

How do you create a ratio table?

Back

A ratio table is created by listing pairs of equivalent ratios in a table format, showing how one quantity changes in relation to another.

Front

What is a proportion?

Back

A proportion is an equation that states that two ratios are equal, often written as a/b = c/d.

Front

How do you solve for an unknown in a proportion?

Back

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

Front

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

Back

15 oz of yellow paint is needed.

Front

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

Back

40 ice cream cones are sold.

Front

Will spent $3.75 for 3 pounds of granola. How many pounds can he buy for $10?

Back

Will can buy 8 pounds of granola.

Front

What does a scale of a map represent?

Back

A scale of a map shows the relationship between a distance on the map and the actual distance it represents.

Front

If 6 cm on a map represents 15 km, how many cm represent 6 km?

Back

2.4 cm represents 6 km.

Front

What is the ratio of quarts of paint thinner to color if it is 2 to 6?

Back

The ratio is 2:6, which can be simplified to 1:3.