Topic 4 Review

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Back

2x + 10

Front

If the height of the water in a fish pond is 42.5 inches and water is drained at a rate of 3.75 inches per minute, what is the height after 3 minutes?

Back

31.25 inches

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Back

15x + 6x + 5

Front

Billy paid $5 for admission and $0.75 per ride ticket. What expression represents his total cost for x ride tickets?

Back

5 + 0.75x

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3a - 3

Front

What is the definition of an expression in mathematics?

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An expression is a combination of numbers, variables, and operators (such as +, -, *, /) that represents a value.

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What is the difference between an expression and an equation?

Back

An expression does not have an equality sign, while an equation states that two expressions are equal.

Front

What does it mean to simplify an expression?

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To simplify an expression means to combine like terms and reduce it to its simplest form.

Front

What are like terms in algebra?

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Like terms are terms that have the same variable raised to the same power.

Front

What is the distributive property?

Back

The distributive property states that a(b + c) = ab + ac.