ee.6

Front

What is a variable in an equation?

Back

A variable is a symbol, often represented by a letter, that stands for an unknown value in an equation.

Front

What does the equation 15 - x represent in a real-world context?

Back

It represents a situation where you start with 15 items and take away x items, showing how many items are left.

Front

How do you represent a total amount of money earned from a job that pays a fixed amount per task?

Back

You can represent it with the expression: Total Money = Initial Amount + (Pay per Task × Number of Tasks).

Front

What does the expression 3x - 10 represent in a problem involving points?

Back

It represents a situation where one person's points are 10 less than three times another person's points.

Front

How do you calculate the total number of items received over a period of time?

Back

You multiply the number of items received per time period by the total number of time periods: Total Items = Items per Period × Number of Periods.

Front

What is the purpose of writing an equation to represent a word problem?

Back

The purpose is to translate a real-world situation into a mathematical form that can be solved to find unknown values.

Front

What does the equation 3(x + 5) = 90 represent?

Back

It represents a situation where three times the sum of an unknown number x and 5 equals 90.

Front

What is the meaning of the term 'expression' in mathematics?

Back

An expression is a combination of numbers, variables, and operations that represents a value but does not include an equality sign.

Front

How can you determine how many items are left after taking some away?

Back

You subtract the number of items taken away from the total number of items initially available.

Front

What does the term 'sum' refer to in mathematics?

Back

The sum refers to the result of adding two or more numbers together.