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Ch 5: TExES Physics/Math 7-12: Ratios, Percent & Proportions

About This Chapter

Review the concepts and calculations associated with ratios, percent and proportions. Use our lessons to refresh your knowledge of this subject matter as you prepare for the TExES Physics/Math 7-12 test.

TExES Physics/Math 7-12: Ratios, Percent & Proportions - Chapter Summary

Let our instructors help you brush up on your knowledge and skills for solving problems with ratios, percents and proportions, including real world problems. The lessons in this chapter cover the following topics:

  • Defining and applying percents
  • Converting percent notation to decimal and fractional notation
  • Solving word problems using percents
  • Defining ratios and rates
  • Solving problems with money
  • Calculating ratios and proportions
  • Steps to solving interest problems
  • Calculating taxes and discounts
  • Solving problems with time

Our video lessons, each less than 10 minutes long, offer a simple and effective way to study for the TExES Physics/Math 7-12 test. Videos may be re-watched, or if you'd like to skip to a main point, use video tags to get to that section of the lesson. Click on links in the video to text lessons for additional information on key terms. Take the chapter exam to be sure you grasped all of the material discussed in the lessons.

16 Lessons in Chapter 5: TExES Physics/Math 7-12: Ratios, Percent & Proportions
Test your knowledge with a 30-question chapter practice test
Percents: Definition, Application & Examples

1. 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.

Converting from Percent Notation to Decimal Notation

2. Converting from Percent Notation to Decimal Notation

Knowing how to convert a percent to a decimal can be a useful skill in many different situations. This lesson will show you how to perform that conversion and places where this skill will be helpful.

Converting Percent Notation to Fraction Notation

3. 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.

Changing Between Decimals and Percents

4. Changing Between Decimals and Percents

Watch as we go on a rollercoaster ride in changing from a decimal to percent and then back again. Learn to master this technique so you can get as fast as a rollercoaster going downhill on tests and quizzes when you have to convert between the two.

Converting Fractions to Percents

5. Converting Fractions to Percents

There are times when it is important to know how to convert a fraction to a percent. Fortunately, the steps to perform this conversion are not difficult. This lesson will show you those steps and give some examples.

How to Solve Word Problems That Use Percents

6. How to Solve Word Problems That Use Percents

100 percent of percent problems can be solved if we follow the correct steps. In this lesson, we'll practice solving a variety of different percent problems.

Ratios & Rates: Definitions & Examples

7. 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.

How to Solve Problems with Money

8. How to Solve Problems with Money

Money matters, and knowing how much things cost will be useful no matter where you go. In this lesson, we'll learn the steps for solving word problems involving money.

Proportion: Definition, Application & Examples

9. 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.

Ratios and Proportions: Definition and Examples

10. Ratios and Proportions: Definition and Examples

Watch this video lesson to learn how ratios and proportions are related. Also, learn how ratios and proportions are used in real life and how you can apply them to yours.

Calculations with Ratios and Proportions

11. Calculations with Ratios and Proportions

Even if only 99 out of 100 people need to know how to work with ratios, the odds that they'll be useful to you are very high. In this lesson, we'll practice performing calculations with ratios and proportions.

How to Solve Interest Problems: Steps & Examples

12. How to Solve Interest Problems: Steps & Examples

If you want to know how your money can earn money, then it's essential to learn about solving interest problems. In this lesson, we'll practice calculating interest amounts and interest rates.

Compounding Interest Formulas: Calculations & Examples

13. Compounding Interest Formulas: Calculations & Examples

Compound interest is a great way to have your money work for you. In this lesson, find out the formula for calculating compound interest and practice using the formula with several examples.

Taxes & Discounts: Calculations & Examples

14. 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.

How to Solve Problems with Time

15. How to Solve Problems with Time

It's amazing how much time can be saved when people work together. In this lesson, we'll practice figuring out just how much time we're talking about as we solve problems involving time.

Distance Formulas: Calculations & Examples

16. Distance Formulas: Calculations & Examples

Let's go on a road trip! In this lesson, we'll practice calculations involving distance, rate and time. We'll also look at how we determine the relationship between distance and fuel.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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Other Chapters

Other chapters within the TExES Physics/Mathematics 7-12 (243): Practice & Study Guide course

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