Unit 4 Equations PRETEST

Front

What is an equation?

Back

An equation is a mathematical statement that asserts the equality of two expressions, typically containing one or more variables.

Front

What does the variable 'x' represent in an equation?

Back

In an equation, 'x' is often used to represent an unknown value that we are trying to solve for.

Front

How do you write an equation from a word problem?

Back

To write an equation from a word problem, identify the quantities involved, define a variable for the unknown, and express the relationships using mathematical symbols.

Front

What does it mean to solve an equation?

Back

To solve an equation means to find the value of the variable that makes the equation true.

Front

What is the first step in solving a word problem?

Back

The first step is to read the problem carefully and identify what is being asked.

Front

In the equation x/7=4, what does 'x' represent?

Back

In this equation, 'x' represents the total number of cookies that Peter had initially.

Front

How do you check if your solution to an equation is correct?

Back

To check if your solution is correct, substitute the value of the variable back into the original equation and see if both sides are equal.

Front

What is a constant in an equation?

Back

A constant is a fixed value that does not change, such as the number 4 in the equation x/7=4.

Front

What does it mean to have '2 croutons left over' in a word problem?

Back

It means that after distributing the croutons equally, 2 croutons remain unallocated.

Front

How can you represent 'putting the same number of croutons on each salad' mathematically?

Back

You can represent this by using multiplication, such as 7x, where 'x' is the number of croutons on each salad.