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This page provides a list of educational videos related to Writing Proportions. You can also use this page to find sample questions, apps, worksheets, lessons , infographics and presentations related to Writing Proportions.
Writing proportions
By Khan Academy
Some examples of writing two ratios and setting them equal to each other to solve proportion word problems
Writing proportional equations
By Khan Academy
Learn how to write a proportional equation y=kx where k is the so-called constant of proportionality.
Writing proportional equations
By Khan Academy
Learn how to write a proportional equation y=kx where k is the so-called constant of proportionality.
Writing proportional equations
By Khan Academy
Learn how to write a proportional equation y=kx where k is the so-called constant of proportionality.
Writing proportional equations
By Khan Academy
Learn how to write a proportional equation y=kx where k is the so-called constant of proportionality.
Writing proportional equations
By Khan Academy
Learn how to write a proportional equation y=kx where k is the so-called constant of proportionality.
Comparing population proportions 1 | Probability and Statistics | Khan Academy
By Khan Academy
For qualitative variables, the population proportion is a parameter of interest. A point estimate of the population proportion is given by the sample proportion. With knowledge of the sampling distribution of the sample proportion, an interval estimate of a population proportion is obtained in much the same fashion as for a population mean.
SAT Math Prep with Dr. Steve - Simple Operation
By Dr.Steeve Warner
SAT Math Prep with Dr. Steve - Simple Operation
Speed translation | Ratios, proportions, units, and rates | Pre-Algebra | Khan Academy
By Khan Academy
This video takes us through some more advanced unit conversion problems. Here, we can see how to make multiple conversions in the same problem concerning speed. Take particular note of how the units change in each step. More importantly, note how, step by step, our units slowly change into the units we want for our final answer. If you are having trouble understanding why this happens, go to the key concept described at 2:20 in the video. Note that this only occurs when multiplying two quantities, not when adding them!
Finding average speed or rate | Ratios, proportions, units, and rates | Pre-Algebra | Khan Academy
By Khan Academy
Using the formula for finding distance we can determine Usian Bolt's average speed, or rate, when he broke the world record in 2009 in the 100m. Watch.
1.8 - Finding the inverse of a rational function with a root as a denominator - coolmath
By Mr. McLogan's Math Channel
In this video tutorial I will show you how to find the inverse of a function f(x). I do this by first writing the equation substituting y for f(x). I then solve the equation for x. The result is the inverse. The inverse can be written, substituting y back in for x, and x for y. I also show how to verify that a function is an inverse of another function. I am a math teacher that provides free online math tutoring by working through problems for the website www.freemathvideos.com These questions are usually to help students understand their math homework or to do well on their math test. The videos are made for students that want help with math and want to be shown a step by step process into solving the problems. In addition to solving the problems I also offer explanations into why I am doing each step. I offer free math videos so that my students can learn math online if they missed a day of school. However I also like to answer questions that are no
How to use Ratios and Proportions to Solve Real World Problems
By mrtedmartin
Instructor uses a Power Point presentation to demonstrate how to use ratios and proportions to solve problems real world problems. Unit rates are discussed and definitions are given. Solving unit rate problems are modeled and a calculator is used for computation.
8.5 Three Theorems Involving Proportions (Lesson)
By AutenMath
A lesson on the Angle Bisector and Side Splitter theorems and a theorem relating segments cut by two transversals and three or more parallel lines.