Writing Algebraic Expressions

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The quotient of a number and 20.

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The sale price after a 30% discount.

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0.70x

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The total cost of an item marked up by 20%.

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1.20x

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The product of a number and eight.

Back

8x

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16% of a number x.

Back

0.16x

Front

What is an algebraic expression?

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An algebraic expression is a mathematical phrase that can include numbers, variables, and operation symbols.

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What does 'variable' mean in algebra?

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A variable is a symbol, often a letter, that represents an unknown value.

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What is the difference between an expression and an equation?

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An expression is a combination of numbers and variables without an equality sign, while an equation states that two expressions are equal.

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How do you represent 'three times a number'?

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3x

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What does 'percent' mean in mathematical terms?

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Percent means 'per hundred' and is used to express a number as a fraction of 100.