ratios 34 videos

The Law of Sines
Trigonometry Basic Trigonometry
How to define the law of sines.
law of sines ratios triangles 
The Law of Cosines
Trigonometry Basic Trigonometry
How to define and use the law of cosines.
law of cosines ratios triangles 
The Law of Sines
Precalculus Basic Trigonometry
How to define the law of sines.
law of sines ratios triangles 
The Law of Cosines
Precalculus Basic Trigonometry
How to define and use the law of cosines.
law of cosines ratios triangles 
Nuclear Stability
Chemistry Nuclear Chemistry
How the ratio of protons to neutrons affects a nucleus' stability.
nuclear stability 
Nuclear Stability
Physics Nuclear Physics
How the ratio of protons to neutrons affects a nucleus' stability.
nuclear stability 
Proportions
Algebra Solving Equations
How to solve proportions.
ratio proportion fraction cross multiply 
Finding the Slope of a Line from a Graph
Algebra Linear Equations and Their Graphs
How to find the slope of a line if given a graph.
slope change ratio fraction slope triangle 
Work Word Problems
Algebra Word Problems Using Systems of Equations
How to solve word problems when 2 people are doing a work job together.
ratio word problem system of equations work 
Circumference
Geometry Circles
How to calculate the circumference of a circle.
circumference pi distance radius diameter ratio 
Percent Yield
Chemistry Chemical Reactions
How to find percent yield for chemical experiments.
percent yield ratio actual yield theoretical yield 
Finding the Slope of a Line from a Graph
Algebra 2 Graphs of Linear Equations
How to find the slope of a line if given a graph.
slope change ratio fraction slope triangle 
Rate Word Problems
Algebra Word Problems Using Systems of Equations
How to solve word problems involving rates of travel, possibly including wind or water current.
rate ratio d=rt word problem system of equations 
ACT PreAlgebra
ACT ACT Math
Short, helpful video on ACT prealgebra by top ACT prep instructor, Devorah. Videos are produced by leading online education provider, Brightstorm.
Pre algebra order of operations percents proportions ratios mean median mode