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Writing Equations

Mike McGarry
Lesson by Mike McGarry
Magoosh Expert
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Word Problems
Summary
The essence of translating word problems into mathematical equations involves recognizing key verbal cues and applying algebraic operations accordingly. This skill is crucial for solving a variety of problems on the ACT exam.
  • Verbal cues such as 'is' or 'are' indicate an equals sign in the equation.
  • Expressions like '50 more than B' translate to algebraic additions (e.g., B + 50), while '50 less than B' translates to subtractions (e.g., B - 50).
  • Percentages are converted into decimals for multiplication, with distinctions made between simple percentages and percent increases.
  • Practice problems demonstrate the application of these translations in solving equations for specific variables.
  • The importance of writing the correct equation based on the problem's specifics is emphasized, with a promise of discussing typical equations for various topics in upcoming lessons.
Chapters
00:00
Translating Verbal Cues to Mathematical Equations
01:58
Understanding Percentages and Their Algebraic Representations
03:16
Solving Practice Problems
07:00
Preparing for Specific Topics and Word Problems