More Problems in Percent: Finding Percents of Unknown Numbers
This clip builds on the role of proportion in solving percent problems, but introduces complications that add steps and make it more difficult to set up the necessary proportions.
More Problems in Percent: Summary: More Problems in Percent
This clip summarizes the "More Problems in Percent" lesson. It reviews the importance of setting up a proportion when starting any problem about percent. It also notes that, "
as a rule, when we figure the percent of increase or decrease, we figure...
More Problems in Percent: Problem Involving Interest, A
This clip explains how to figure out the monthly interest due on a loan.
More Problems in Percent: Percent and Proportion
This clip reviews the role that proportion plays in solving problems involving percent. "Once we have the proportion," the clip notes, "
solving (the problem) is easy."
More Problems in Percent: Percents in Steps
This clip uses a problem about a growing colony of foxes to demonstrates how an increase in the fox population over time affects the way the proportion must be set up.
Solving a Complicated Mixture Problem
A complicated word problem involving percentages is broken into simpler parts and a solution found.
The Meaning of Percentage: Percentage Provides An Easy Way to Compare Fractions
This clip explains that using percent to express values provides an easy means by which to compare fractions. The clip notes that, since there's a common denominator of 100, all that's needed to compare fractions expressed as a percent is to compare...
The Meaning of Percentage: Decimals, Percents and Fractions
This clip explains that decimals can be changed to percents by moving the decimal point all the way to the far right and adding the percent sign. "Changing percent to decimals is just the reverse," the clip adds. "We drop the percent sign, put in a ...
Credit Purchases
Learn just how prevalent credit has become in retailing and how in today's business world, credit is no longer just a customer convenience, it increases sales and provides additional income.
The Meaning of Percentage: Changing Fractions to Percents and Percents to Fractions
This clip explains that the easiest way to understand percent is to think of it as a proportion. The clip notes that this allows us to change fractions to decimals, and provides examples of how this is done. The clip then reverses the process and ex...