Practical Problem: Pay Rate for Shipping Clerks
Practical problems that involve finding a single solution that satisfies two conditions or requirements can be solved using a system of equations. The substitution method is demonstrated in an example involving pay rates for two employee groups and ...
Solving Systems of Equations Using the Elimination Method by Adding
Explanation of the elimination method of solving a system of equations. Adding the equations to eliminate a variable is quicker than using the substitution method, but requires that both equations be in the same form and that the system contain an a...
Solving a Mixture Problem Using One Variable
A word problem involving mixing a solution that needs to be 25 percent chlorine is analyzed, the unknown identified, and a one-variable equation written to solve the problem.
Solving a Mixture Problem Using Two Variables
A word problem involving mixing a solution that needs to be 25 percent chlorine is analyzed, the unknown identified, and a two-variable system of equations written to solve the problem.
Some Problems are More Easily Solved Using Two Variables
A practical problem is presented that demonstrates a situation in which two variables and a system of equations is the easiest way to reach a solution.
Solving a Rate-Time-Distance Problem Using One Variable
How to write an equation with one variable to solve a practical problem involving rate, time, and distance using a table to help organize the information.
Solving a Rate-Time-Distance Problem Using Two Variables
Writing a two-variable system of equations to solve a practical problem involving rate, time, and distance using a table to help organize the information.
Four Basic Tactics for Equations
A summary of the four basic tactics for solving equations.
Slope Formula, The
The slope formula enables you to use two ordered pairs to find slope. Sub notation is used for clarity.
Graphing Linear Equations with One Variable
How to graph a linear equation with one variable.