122 Videos for "systems of equations"

Cramer's Rule  Concept
Math › Precalculus › Systems of Linear Equations and Matrices
How to solve a system of two linear equations with two unknowns using Cramer's rule. 
Selling Multiple Items  Problem 1
Math › Algebra › Word Problems Using Systems of Equations
How to set up and solve a system of equations related to selling tickets to an event at different costs. 
Selling Multiple Items  Problem 2
Math › Algebra › Word Problems Using Systems of Equations
How to set up and solve a system of equations related to selling 2 different products at different prices. 
Selling Multiple Items  Concept
Math › Algebra › Word Problems Using Systems of Equations
How to set up a system of equations to represent word problems where someone is selling multiple items. 
Cramer's Rule  Problem 2
Math › Precalculus › Systems of Linear Equations and Matrices
How to solve a system of three linear equations with three unknowns using Cramer's rule and the TI84 to compute determinants. 
Coin Word Problems  Concept
Math › Algebra › Word Problems Using Systems of Equations
How to solve word problems about values and number of coins. 
Age Word Problems  Concept
Math › Algebra › Word Problems Using Systems of Equations
How to solve word problems about the ages of two people. 
Cramer's Rule  Problem 1
Math › Precalculus › Systems of Linear Equations and Matrices
How to interpret the results when Cramer's rule fails to yield a solution. 
Rate Word Problems  Concept
Math › Algebra › Word Problems Using Systems of Equations
How to solve word problems involving rates of travel, possibly including wind or water current. 
Rate Word Problems  Problem 2
Math › Algebra › Word Problems Using Systems of Equations
How to solve word problems involving air or water current. 
Work Word Problems  Concept
Math › Algebra › Word Problems Using Systems of Equations
How to solve word problems when 2 people are doing a work job together. 
Work Word Problems  Problem 2
Math › Algebra › Word Problems Using Systems of Equations
How to solve word problems when 2 people are doing a work job together. 
Age Word Problems  Problem 2
Math › Algebra › Word Problems Using Systems of Equations
How to solve word problems about the ages of two people if given their past ages. 
Age Word Problems  Problem 1
Math › Algebra › Word Problems Using Systems of Equations
How to solve word problems about the ages of two people if given their future ages. 
Coin Word Problems  Problem 1
Math › Algebra › Word Problems Using Systems of Equations
How to solve word problems about values and number of quarters and dimes. 
Coin Word Problems  Problem 2
Math › Algebra › Word Problems Using Systems of Equations
How to solve word problems about values and number of quarters and nickels. 
Rate Word Problems  Problem 3
Math › Algebra › Word Problems Using Systems of Equations
How to solve word problems involving rates of travel. 
Work Word Problems  Problem 1
Math › Algebra › Word Problems Using Systems of Equations
How to solve word problems when 2 people are doing a work job together and there is a fractional answer. 
Rate Word Problems  Problem 1
Math › Algebra › Word Problems Using Systems of Equations
How to solve word problems about airplanes leaving opposite cities and moving toward each other. 
The Cross Product of Vectors  Problem 3
Math › Precalculus › Systems of Linear Equations and Matrices
How to find the equation of a plane that contains three given points.