Proportional Reasoning

Front

What is proportional reasoning?

Back

Proportional reasoning is the ability to compare ratios and understand the relationship between quantities. It involves recognizing that two ratios are equivalent and can be used to solve problems involving scaling, rates, and percentages.

Front

How do you calculate a percentage of a total?

Back

To calculate a percentage of a total, multiply the total by the percentage (in decimal form). For example, to find 75% of 60, calculate 60 * 0.75 = 45.

Front

If 2 inches on a map represents 70 miles, how do you find the actual distance for a different scale?

Back

Front

What is the formula to calculate sales tax?

Back

Front

What does it mean if two ratios are equivalent?

Back

Front

How do you convert a fraction to a percentage?

Back

Front

What is a scale drawing?

Back

A scale drawing is a representation of an object where the dimensions are proportional to the actual dimensions. For example, a scale drawing of the Eiffel Tower might use a scale of 1 cm = 40 m.

Front

How do you find the height of a scale drawing given the actual height?

Back

Front

What is the relationship between ratios and proportions?

Back

Front

How do you solve for an unknown in a proportion?

Back