Translating Word Statements into Algebraic Expressions

What is an algebraic expression?

• A list of numbers

• A sentence with numbers only

• A mathematical phrase with variables

• A paragraph describing a math problem

How would you express 'the sum of six and a number' using a variable?

• 6 - x

• 6 / x

• 6 * x

• 6 + x

If a number is divided by two and then added to three, how can this be written as an algebraic expression?

• n / 2 - 3

• n / 2 + 3

• 3 - n / 2

• 3 * n / 2

What does the expression '15 less than the product of 9 and a number' translate to?

• 9r - 15

• 15 - 9r

• 15 + 9r

• 9r + 15

Which variable is used to represent an unknown number in the expression '9r - 15'?

• y

• r

• x

• n