Expressions Review 24-25

Front

What is an expression in mathematics?

Back

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

Front

What does it mean to simplify an expression?

Back

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

Front

What is a constant in an expression?

Back

A constant is a fixed value that does not change, such as the number 75 in the expression 75 - 8t.

Front

What is a variable in an expression?

Back

A variable is a symbol (usually a letter) that represents an unknown value, such as 'n' or 'y'.

Front

How do you represent 'the product of 6 and a number y' in an expression?

Back

The expression is represented as 6y.

Front

What does '10 less than half the number n' mean in mathematical terms?

Back

It is represented as (1/2)n - 10.

Front

What is the startup fee in the dancing club problem?

Back

The startup fee is $30.

Front

What is the monthly fee in the dancing club problem?

Back

The monthly fee is $4.

Front

How do you write an expression for 'the total cost after m months in the dancing club'?

Back

The expression is 4m + 30.

Front

What is the result of distributing -2 in the expression -2(5x - 3x + 7y)?

Back

The result is -4x - 14y.