Inequalities, Proportions, and Equation Transformations
This page delves deeper into rozwiązywanie nierówności (solving inequalities) and introduces the concept of proportions.
The section begins with solving inequalities using the method of equivalent inequalities, providing a step-by-step example.
Example: Solving the inequality -6x + 11 > -4x + 4, resulting in x < -2
The page then transitions to proportions, explaining the concept and providing examples of how to use proportion properties.
Definition: A proportion is an equation stating that two ratios are equal, typically written as a:b = c:d.
Highlight: The page emphasizes the importance of applying proportion properties in problem-solving.
The final section covers equation transformations, demonstrating how to rearrange formulas to solve for different variables.
Example: Transforming the formula P = (a+b)h/2 to solve for 'a': a = (2P/h) - b
This page provides essential skills for wyrażenia algebraiczne - zadania tekstowe (algebraic expressions - word problems) and wyrażenia algebraiczne - zadania i odpowiedzi (algebraic expressions - exercises and answers).