Variables and Algebraic Expressions
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Variables and Algebraic Expressions
📚 Part 1: Understanding Variables and Expressions
The coefficient is: ________
The variable is: ________
The constant is: ________
✏️ Part 2: Real-World Scenarios
Let s = the number of stickers Maria started with
Expression: ________________
Let t = the number of tickets purchased
Expression: ________________
Let e = evening miles
Expression: ________________
Let n = number of toppings
Expression: ________________
Let b = number of books her brother has
Expression: ________________
🎯 Part 3: Create Your Own
Let d = number of students served each regular day
Expression for total students served all week: ________________
📋 Answer Key
1. A letter that represents an unknown number
2. Coefficient: 5, Variable: x, Constant: 3
3. 3n - 8 and 2y + 5 (algebraic expressions contain variables)
4. s - 7
5. 12t
6. 3 + e
7. 15 + 2n
8. 2b + 4
9. Sample answer: "A gym membership costs $4 per month, but there's a $10 registration fee that gets refunded, so the expression represents the net cost after x months."
10. 5d - 25 or 4d + (d - 25)
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