Equivalent Expressions from Situations

Front

What is an equivalent expression?

Back

An equivalent expression is an expression that has the same value as another expression for all values of the variable(s) involved.

Front

How do you find the area of a rectangle?

Back

The area of a rectangle is found by multiplying its length by its width (Area = length × width).

Front

What is the formula for the perimeter of a rectangle?

Back

The perimeter of a rectangle is calculated by adding together the lengths of all four sides, or using the formula Perimeter = 2(length + width).

Front

What does it mean to simplify an expression?

Back

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

Front

How do you combine like terms in an algebraic expression?

Back

Like terms are combined by adding or subtracting their coefficients while keeping the variable part the same.

Front

What is the significance of coefficients in algebraic expressions?

Back

Coefficients are the numerical factors in terms of an expression, indicating how many times the variable is multiplied.

Front

How can you represent a total quantity using algebraic expressions?

Back

A total quantity can be represented by adding the expressions that correspond to each part of the total.

Front

What is the process for distributing in algebra?

Back

Distributing involves multiplying a term outside of parentheses by each term inside the parentheses.

Front

What is the formula to calculate the total cost of multiple items?

Back

Total cost = (cost per item) × (number of items).

Front

How do you round numbers to the nearest cent?

Back

To round to the nearest cent, look at the third decimal place: if it's 5 or more, round up; if it's less than 5, round down.