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 The Greater Than or Equal To Symbol (≥) Introduction The " greater than or equal to" symbol (≥) is a fundamental mathematical notation used to compare two values. It signifies that the first value is either greater than or equal to the second value. This symbol is essential in algebra, programming, statistics, and everyday scenarios, as it helps define relationships, constraints, and conditions. Understanding its meaning and applications allows us to effectively interpret and solve various problems. Origins and Notation The "greater than or equal to" symbol combines the greater than sign (>) and an underscore-like line beneath it (=). This composite notation was designed to visually represent the "greater than" and "equal to" relationships in one symbol. Meaning and Usage The symbol expresses a condition where the first value meets or exceeds the second value. For example: x≥5x \geq 5 means xx is greater than or equal to 5, allowing values su...
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  How to Solve Word Problems of Inequality Introduction Inequalities are mathematical expressions that compare two values using symbols like greater than (>) or less than (<). Solving word problems involving inequalities requires translating real-life scenarios into mathematical statements. This process involves careful reading, variable assignment, and logical reasoning to find the solution. Step-by-Step Approach Understand the Problem Carefully read the word problem to grasp the situation. Identify key details such as quantities, comparisons, and conditions. Look for terms that indicate inequality, such as: "At least" (≥) "No more than" (≤) "Exceeds" (>) "Less than" (<) Example: A student needs at least 75 marks to pass an exam.       2. Define Variables Assign variables to unknown quantities. Using variables simplifies the translation of word problems into mathematical expressions. Example: Let xx represent the student’s marks. ...
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