About This Chapter
How It Works:
- Identify the lessons in the Prentice Hall Ratios, Proportions & Percents chapter with which you need help.
- Find the corresponding video lessons with this companion course chapter.
- Watch fun videos that cover the ratios, proportions and percents topics you need to learn or review.
- Complete the quizzes to test your understanding.
- If you need additional help, rewatch the videos until you've mastered the material or submit a question for one of our instructors.
Students will learn:
- The definitions of ratios, proportions and percents
- How to apply scale factors to volume, perimeter and area
- Solving problems using proportions and percents
- Calculating the probability of compound, simple and complementary events
- The definition and formula for percent of change
- Calculations for discounts and taxes
- Real-world applications of graphs and tables
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1. Ratios & Rates: Definitions & Examples
If we have two items, or two numbers, and we want to compare them, what language can we use? How do we write the comparison? Find out as we learn about ratios and rates in this lesson.
2. Proportion: Definition, Application & Examples
When we want to compare one ratio, or fraction, to another equivalent ratio, it's a proportion. Learn all about proportions and practice solving proportion problems in this lesson.
3. Applying Scale Factors to Perimeter, Area, and Volume of Similar Figures
How do shapes change sizes yet retain their proportions and similarities to other shapes? In this lesson, we'll look at what a scale factor is and how to apply it. We'll consider scale factors with regards to three different aspects of similar shapes: perimeter, area and volume.
4. How to Read and Interpret Scale Drawings
Watch this video lesson to learn how scale drawings and legends are used on maps and blueprints. Learn skills that will serve you well when traveling and when looking at the blueprints of a car.
5. Probability of Simple, Compound and Complementary Events
Simple, compound, and complementary events are different types of probabilities. Each of these probabilities are calculated in a slightly different fashion. In this lesson, we will look at some real world examples of these different forms of probability.
6. Percents: Definition, Application & Examples
Maybe you know that 95% is an A and 75% is a C. But what do those percents really mean? In this lesson, we'll learn about percents, including how to convert them to fractions and decimals.
7. Converting Percent Notation to Fraction Notation
The process of converting percents to fractions is quite easy if you know where to start. This lesson will show you how to perform the conversion and give some real-world examples.
8. Solving Problems Involving Proportions: Definition and Examples
Learn how you can use proportions to find missing sides and how to increase or decrease the sizes of objects to create models of them in this video lesson.
9. Solve Problems Using Percents
Percents are your friend. Think of all the cool things percents do for you. They save you money, and they tell you how well you are doing in school. Learn how you can solve problems with percents in this video lesson.
10. Taxes & Discounts: Calculations & Examples
When you go shopping, you don't want to be surprised by the amount of tax on an item. You also want to fully understand discounts to know how much you can save. In this lesson, we'll practice calculating both tax and discounts.
11. Using Tables and Graphs in the Real World
We use tables and graphs in algebra as ways to visually show an equation or function. But do we really use these in the real world? Is it that important to learn about tables and graphs? Find out in this video lesson.
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Other chapters within the Prentice Hall Pre-Algebra: Online Textbook Help course
- Prentice Hall Pre-Algebra Chapter 1: Algebraic Expressions & Integers
- Prentice Hall Pre-Algebra Chapter 2: Solving One-Step Equations & Equalities
- Prentice Hall Pre-Algebra Chapter 3: Decimals & Equations
- Prentice Hall Pre-Algebra Chapter 4: Factors, Fractions & Exponents
- Prentice Hall Pre-Algebra Chapter 5: Operation with Fractions
- Prentice Hall Pre-Algebra Chapter 7: Solving Equations & Inequalities
- Prentice Hall Pre-Algebra Chapter 8: Linear Functions & Graphing
- Prentice Hall Pre-Algebra Chapter 9: Spatial Thinking
- Prentice Hall Pre-Algebra Chapter 10: Area & Volume
- Prentice Hall Pre-Algebra Chapter 11: Right Triangles in Algebra
- Prentice Hall Pre-Algebra Chapter 12: Data Analysis & Probability
- Prentice Hall Pre-Algebra Chapter 13: Nonlinear Functions & Polynomials