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Use variables to represent two quantities in a real-world problem that change in relationship to one another; write an equation to express one quantity, thought of as the dependent variable, in terms of the other quantity, thought of as the independent variable. Analyze the relationship between the dependent and independent variables using graphs and tables, and relate these to the equation.

Q: How do we use variables in the real wold?

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Variables are simply used as a connection to the real world, a variable may represent a number you have to find and you can use an equation to do so.

They do not necessarily use them every day.

to quantify the qualitative variables.

They use them to solve an equation they don't know.Accountants use variables to give a visualization to their customers as to how they are doing the accounting

The only disadvantage of a global variable is that you cannot directly encapsulate them. Other than that, there is no real disadvantage of global variables.

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i wold like to become a real wizard to use it for funand help people

Not real ones.

with variables like x

Variables are simply used as a connection to the real world, a variable may represent a number you have to find and you can use an equation to do so.

No there is not. Spells and magic do not exist in the real wold

Show the money to your local bank. They wold be able to tell if it is real or not.

no it wold be sad you shouldn't dress a real hamster.

There is a musical on Broadway.

It is a Term.

to quantify the qualitative variables.

They do not necessarily use them every day.

Lawrence Murray Graves has written: 'The theory of functions of real variables' -- subject(s): Functions of real variables