Virtual Nerd: How Do You Use a Proportion to Find a Whole?

Video tutorial shows how to use a percent equation to find a percent of a number. [5:09]

Tutorial shows how to use a percent proportion to take a percent of a number. [2:13]

An explanation of the percent proportion formula. Identify the variables. Plug in the known values. Cross multiply. Use division property of equality to solve. A step-by-step example.

Using baseball as an example, watch how you can apply the Fundamental Counting Principle to count the number of different ways a coach can fill his infield. This video will show you how to make a drawing to better understand the problem....

Percent of a number? Learn how to set this problem up as a proportion to solve. It's not as hard as you think.

View this tutorial to see how to use what you know about complementary angles to find a missing angle measurement. [3:20]

The teacher shows how to break down this problem by first identifying all the terms. After changing the percent to a decimal, she shows how to set up the equation using the terms. Lastly, she solves the equation using the division...

To take a percent of a number convert the percent to a decimal and multiply it by the number. Take a look at this tutorial to learn how. [1:20]

Percentages, parts, whole, how do these pieces fit together to solve a percent problem? Follow along as the instructor shows how to set this up as a proportion problem in order to solve it.

Watch this tutorial to discover how to use a sample to make a prediction about a population. [5:16]