What exactly is a variable expression?
Please and thank you.
I forget to add...
The last part of the word problem is, Write a variable expression for the amount charged.
?
...I think I got it.
Thank you, though. (:
And I apologize for my rudeness last night.
I was out of line.
idk my guy
A variable expression is a mathematical expression that contains one or more variables. Variables are symbols that can represent any number or value. The value of a variable can change, hence the term "variable".
To understand what a variable expression is, let's break it down:
1. Expression: An expression is a combination of numbers, operators, and variables that represents a mathematical computation. It does not have an equal sign (=) and cannot be solved or simplified further.
2. Variable: A variable is a symbol that represents an unknown value or a value that can vary. In mathematics, variables are commonly represented by letters such as "x" or "y". For example, in the expression "3x + 2", "x" is a variable.
Combining these two concepts, a variable expression is an expression that contains one or more variables. It represents a mathematical computation where the actual values of the variables are not known but can be substituted or changed.
For example, consider the expression "2x + 5". In this case, "x" is a variable, and the expression represents a computation that depends on the value of "x". The expression can be evaluated or simplified by substituting a specific value for "x". For instance, if we substitute "x" with 3, the expression becomes "2(3) + 5", which equals 11.
So, in summary, a variable expression is a mathematical expression that contains variables, representing an unknown or changing value that can be evaluated by substituting specific values for the variables.