It is very common to use, but it is not the only variable you can use.
You can use any variable that you want.
there is no variable for 500, but you could use the most commonly known variable X.
You use substitution when you can solve for one variable in terms of the others. By substituting, you remove one variable from the equation, which can then be solved. Once you solve for one variable, you can use substitution to find the other.
By using algebra. You have to isolate the variable and use the constants to find the varaible.
It is very common to use, but it is not the only variable you can use.
My manipulated variable was affected by the independent variable.
You can use any variable that you want.
A global variable is available for use throughout the program. It is normally declared outside any procedure. A local variable is only available for use in the procedure it was declared in. Most variables are local, but there will be occasions when you want different procedures to be able to use the same variable. This is when you use a global variable.
there is no variable for 500, but you could use the most commonly known variable X.
yes
For C programming, the use of a static variable has two uses: One reason is to hide the variable from other modules. The scope of the static variable is limited to the compilation unit that it is described in. The second use of a static variable is to keep the value of the variable intact through the entire program execution unit.
with the help of pointers we able to store the memory location of any variable. In c the pointer variable is use to store the memory location of any variable. The pointer variable is define as a simple variable but in pointer variable use a special "*" character at the left most side of name of pointer variable. If any variable name have * it means it is a pointer variable it hold the memory location of variable.
Anywhere you want. In general, you can use a variable anywhere you can use a number.
The variable being tested is called the independent variable. This is the variable that is deliberately changed by the experimenter to observe its effect on the dependent variable.
No but its cost may be variable depending on how much you use.
you just used the word variable in a question :)