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Ch 3: Honors Algebra 1: Calculations, Ratios, Percent & Proportions

About This Chapter

Learn how to calculate taxes, interest rates, discounts and more by watching the videos in the Calculations, Ratios, Percent & Proportions chapter of this study guide. Mastering this material can help your grade and save you time and money.

Honors Algebra 1: Calculations, Ratios, Percent & Proportions - Chapter Summary and Learning Objectives

The ability to calculate ratios, percents, proportions and rates has broad applications far beyond the classroom. It's something we do every day, whether we actually think about it or not. Any time you shop, you're looking for sales, which means you'll be calculating the percentage off the purchase price offered by the discount. You pay taxes on whatever you buy, and the bank pays you interest on the money in your accounts. Thus, percents, ratios, rates and proportions are all facts of life. Check out the video lessons for more information on the following:

  • Defining rate, ratio, proportion and percent
  • Performing calculations with distance and time
  • Understanding and figuring taxes and discounts
  • Identifying the difference between a ratio and a proportion
  • Calculating simple and compound interest

VideoObjective
Ratios & Rates: Definitions & Examples Use rates and ratios to compare numbers.
How to Solve Problems with Money Problem-solve with money.
Proportion: Definition, Application & Examples Solve problems that involve proportions.
Calculations with Ratios and Proportions Illustrate computations with proportions and ratios.
How to Solve Word Problems That Use Percents Find solutions to word problems with percents.
How to Solve Interest Problems: Steps & Examples Calculate interest rates and amounts.
Compounding Interest Formulas: Calculations & Examples Explain and compute compound interest.
Taxes & Discounts: Calculations & Examples Figure taxes and discounts.
How to Solve Problems with Time Write and solve time-related problems.
Distance Formulas: Calculations & Examples Determine rate, distance and time using distance formulas.

10 Lessons in Chapter 3: Honors Algebra 1: Calculations, Ratios, Percent & Proportions
Test your knowledge with a 30-question chapter practice test
Ratios & Rates: Definitions & Examples

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.

How to Solve Problems with Money

2. 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

3. 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.

Calculations with Ratios and Proportions

4. 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 Word Problems That Use Percents

5. 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.

How to Solve Interest Problems: Steps & Examples

6. 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

7. 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

8. 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

9. 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

10. 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.
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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 Honors Algebra 1 Textbook course

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