Expressions Review

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

How do you simplify the expression n + 0.02n?

Back

You can factor out n to get 1.02n.

Front

What does the variable 'm' represent in the expression 4m - 2?

Back

The variable 'm' represents a quantity that can change or vary.

Front

How do you find the total miles Jean ran over two weeks if she ran 4m - 2 miles last week and 0.5 miles more this week?

Back

You add the two expressions: (4m - 2) + (4m - 2 + 0.5) = 8m - 3.5.

Front

What is the cost expression for buying p pounds of potatoes at $0.32 per pound and n pounds of onions at $0.48 per pound?

Back

The cost can be represented by the expression 0.32p + 0.48n.

Front

How do you calculate the area of each section if the total area is represented by 84z - 54 and it is divided into six equal sections?

Back

You divide the total area by 6: (84z - 54) / 6 = 14z - 9.

Front

What is the profit expression for Hadley if she sells s scarves at $12 each and pays a $25 booth fee?

Back

The profit can be expressed as 12s - 25.

Front

What does it mean to simplify an expression?

Back

Simplifying an expression means to reduce it to its simplest form by combining like terms and eliminating unnecessary operations.

Front

What are like terms in an expression?

Back

Like terms are terms that have the same variable raised to the same power, allowing them to be combined.

Front

What is the difference between an equation and an expression?

Back

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