Midterm / Semester 1 Review (LA)

Front

What is the formula to calculate the number of items that can be purchased with a given amount of money?

Back

Number of items = Total amount of money / Cost per item.

Front

What is the value of -5 + 2(-4)?

Back

-5 + 2(-4) = -5 - 8 = -13.

Front

Evaluate the expression: 3c + bc - 2a when a = -5, b = -4, c = 6.

Back

3(6) + (-4)(6) - 2(-5) = 18 - 24 + 10 = 4.

Front

What is the result of simplifying the expression: 2 - (-7) + 3?

Back

2 + 7 + 3 = 12.

Front

Translate the verbal expression 'Five more than the product of a number and three' into an algebraic expression.

Back

3x + 5.

Front

What is the definition of an algebraic expression?

Back

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

Front

What does it mean to simplify an expression?

Back

To simplify an expression means to reduce it to its simplest form by combining like terms and performing operations.

Front

What is the order of operations in mathematics?

Back

The order of operations is Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right) - often remembered as PEMDAS.

Front

How do you evaluate an expression with variables?

Back

Substitute the values of the variables into the expression and then perform the operations.

Front

What is a verbal expression in mathematics?

Back

A verbal expression is a phrase that describes a mathematical relationship using words.