# Ch 20: Algebra II: Calculations, Ratios, Percent & Proportions Review

Our chapter on calculations, ratios, percent and proportions can show you how to solve several practical math scenarios that might relate to finance, sales discounts and tax rates. The chapter's easy-to-follow video lessons and engaging practice sets can help you understand these mathematical concepts.

## Algebra II: Calculations, Ratios, Percent and Proportions Review - Chapter Summary and Learning Objectives

This chapter reviews a wide variety of practical math situations. You'll learn the difference between ratios and rates. You'll also practice solving math problems related to money and costs. Several lessons can teach you about percents and interest rates as they relate to tax totals, discounts and other real-life possibilities. Once you've finished the lessons in this chapter, you will have an understanding of several topics, including:

• Ratios and rates
• Money math problems
• Proportions
• Percents
• Interest formulas
• Taxes and discounts
• Distance formulas

Video Objective
Ratios and Rates: Definitions and Examples Explain the difference between ratios and rates and how each is determined.
How to Solve Problems with Money Understand how to solve money problems by multiplying the number of units by the cost per unit to find a total cost.
Proportion: Definition, Application and Examples Define what proportion is and apply this definition to proportion math problems.
Calculations with Ratios and Proportions Perform calculations that involve both ratios and proportions.
Percents: Definition, Application and Examples Provide examples of how to calculate percentages by interchanging percents, fractions and decimals.
How to Solve Word Problems That Use Percents Successfully solve word problems that involve percents by identifying the whole, part or percent components.
How to Solve Interest Problems: Steps and Examples Determine the interest of a given figure and understand terms like interest rate and principal.
Compounding Interest Formulas: Calculations and Examples Know how to calculate the compound interest of a given amount.
Taxes and Discounts: Calculations and Examples Figure out both the tax charged on an item and the final discount price of sales items with given percentage discounts.
How to Solve Problems with Time Understand the mathematical process of calculating time and rates.
Distance Formulas: Calculations and Examples Comprehend how to calculate distance using distance formulas.

11 Lessons in Chapter 20: Algebra II: Calculations, Ratios, Percent & Proportions Review
Test your knowledge with a 30-question chapter practice test
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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