Examples showing the Order of Operations
The order of operations is demonstrated in three examples.
Graphing the Equation F = 1.8C 32
Graphing the equation F = 1.8C 32 to convert temperatures given in Celsius to Fahrenheit.
Gross Earnings
The importance of maintaining accurate payroll records. It covers methods for calculating gross earnings, overtime earnings, and incentive pay methods such as commission and piecework pay.
Deciding Between Substitution and Elimination
How to decide whether substitution or elimination is the better method for solving a system of equations in which one equation has been solved for a variable.
Determining the Value of a Variable
Sometimes a variable can appear more than once in a single algebraic equation. These different variables are represented by different symbols.
Equations with a Variable and a Constant on Each Side
Strategies for working with equations containing both constant and variables on each side of the equation.
Combining Two Inequalities in One Statement
When and how to combine two inequalities into one statement, called a compound inequality.
Evaluating a Rational Expression
The method of substituting a value for the variables in a rational expression is called evaluating an expression.
Example of Using Multiplication to Change Terms
Two different ways of using multiplication in a system of equations to eliminate a variable are demonstrated.
Variables and the Greatest Common Factor
To factor completely, the greatest common factor must include every number and variable that is a factor of each term in the polynomial. A demonstration of how variables can be a part of the greatest common factor.