# Chapter 8: Ratios, Proportions, and Percents

Difficulty Level:

**At Grade**Created by: CK-12

### Introduction

In this chapter, students will engage with the following concepts: ratios, proportions, and percents, including rates, solving proportions, scale drawings, finding the percent of a number, and using a proportion in a problem solving strategy.

## Chapter Outline

- 8.1. Ratios and Equivalent Ratios
- 8.2. Ratios in Simplest Form
- 8.3. Ratios as Decimals
- 8.4. Identification and Writing of Equivalent Rate
- 8.5. Comparison of Unit Rates
- 8.6. Proportions Using Cross Products
- 8.7. Mental Math to Solve Proportions
- 8.8. Proportions to Find Dimensions
- 8.9. Proportions to Find Scale Factor
- 8.10. Conversion of Decimals and Fractions as Percents
- 8.11. Percents as Decimals
- 8.12. Percents as Fractions
- 8.13. Interpretation of Circle Graphs
- 8.14. Fractions as Percents
- 8.15. Decimals as Percents
- 8.16. Comparison of Fractions, Decimals and Percents
- 8.17. Percent of a Number
- 8.18. Prices Involving Discounts
- 8.19. Prices Involving Sales Tax
- 8.20. Tip Estimation
- 8.21. Simple Interest
- 8.22. Problem Solving Plan Proportions

### Chapter Summary

### Image Attributions

## Description

This chapter covers: ratios, proportions, and percents, including rates, solving proportions, scale drawings, finding the percent of a number, and using a proportion in a problem solving strategy.

## Difficulty Level:

At Grade## Subjects:

## Grades:

## Date Created:

Nov 19, 2014## Last Modified:

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