• #### Rectangular Coordinate System - Problem 3

##### Math›Algebra 2›Graphs of Linear Equations
How to solve for a variable given a point that lies on the line.
• #### Introduction to the 3D Coordinate System - Concept

##### Math›Precalculus›Vectors and Parametric Equations
How to define the components and length of a position vector in three dimensions.
• #### 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.
• #### Introduction to the 3D Coordinate System - Problem 1

##### Math›Precalculus›Vectors and Parametric Equations
How to find the coordinates of the vertices of a rectangular box.
• #### 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 - 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.
• #### Introduction to the 3D Coordinate System - Problem 2

##### Math›Precalculus›Vectors and Parametric Equations
How to find the equation of a sphere with radius r when it is centered at the origin.
• #### 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 TI-84 to compute determinants.
• #### Introduction to the 3D Coordinate System - Problem 3

##### Math›Precalculus›Vectors and Parametric Equations
How to find the components of a vector from point A to point B in three-dimensions, and how to find its length.
• #### Percent Concentrations - Problem 4

##### Math›Algebra›Word Problems Using Systems of Equations
How to write a system and solve chemistry percent mixture problems
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• #### Sum of Digits - Problem 3

##### Math›Algebra›Word Problems Using Systems of Equations
Writing a system of equations and solving word problems involving switched digits from a single number
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• #### Mixture Problems - Problem 3

##### Math›Algebra›Word Problems Using Systems of Equations
Solving mixture word problems that involve amount and cost of items by writing a system of equations
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• #### Coin Word Problems - Concept

##### Math›Algebra›Word Problems Using Systems of Equations
How to solve word problems about values and number of coins.
• #### Coin Word Problems - Problem 3

##### Math›Algebra›Word Problems Using Systems of Equations
Coin, Mixture, and Cost System of Equations Word Problems and solving by getting rid of decimals
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• #### Age Word Problems - Concept

##### Math›Algebra›Word Problems Using Systems of Equations
How to solve word problems about the ages of two people.
• #### 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.
• #### Selling Multiple Items - Problem 3

##### Math›Algebra›Word Problems Using Systems of Equations
Technique for writing a system of equations that represents the cost of two different types of items
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• #### 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.
• #### Rate Word Problems - Problem 4

##### Math›Algebra›Word Problems Using Systems of Equations
Setting up a system of equations to solve a windspeed or current speed word problem
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