4.11 Writing Algebraic Expressions - Word Problems

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What is an algebraic expression?

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How do you represent '5 points extra credit' if g represents a grade?

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It represents the total cost of hiring a clown, where $100 is the base fee and $20 is charged for each hour (h) of service.

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If strawberries cost $1.95 per pound, how do you express the cost for p pounds?

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How do you express the amount of cookies Joe split with his 3 siblings if c represents the cookies?

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It indicates that Kia tripled her score, where p represents the points she scored.

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What is the difference between a variable and a constant in algebra?

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A variable is a symbol (like x or y) that represents an unknown value, while a constant is a fixed value (like 5 or 10).

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What is the purpose of using algebraic expressions in word problems?

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Algebraic expressions help translate real-world situations into mathematical language, allowing for easier problem-solving.

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How do you write an expression for the total cost of an item that costs a fixed amount plus a variable amount?

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What does the term 'evaluate' mean in the context of algebraic expressions?

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To evaluate an algebraic expression means to substitute the values of the variables and perform the operations to find a numerical result.