Math, asked by ssdrvidya, 1 year ago

The sale of sweets during last week was less by 20%. How much per cent in this week's sale of sweets more than that of last week?

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Answered by smartyjay9
1

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Yale-New Haven Teachers Institute Home

Solving Problems “by the Hundreds” A Study of Percentage and Its Applications in the Study of Consumer Related Problems

by

Lauretta J. Fox

Contents of Curriculum Unit 80.07.07:

Introduction

The Meaning of Percent

Percents, Common Fractions, a Decimals

Percentage Problems

Sales Tax and Gratuities

Discount

Commission

Simple Interest

Compound Interest

Compound Interest Table

Bibliography for Teachers

Student Reading List

To Guide Entry

Introduction

Percentage is a mathematical concept that appears very frequently in everyday life. You read that a merchant is offering a twenty percent discount on a selected group of items. The manufacturer of an article of clothing states that the material is sixtyfive percent dacron and thirty five percent polyester. Savings banks pay a five and one half percent interest rate annually on regular savings accounts. The state of Connecticut has raised the rate of its sales tax to seven and one half percent.

These and similar items which appear daily in newspapers indicate the importance of understanding the concept of percentage. In order to live more insightfully, wisely and enjoyably every citizen should be able to perform simple mathematical calculations which enable him to compute discount and sales tax on purchases, gratuities for services performed, interest on savings accounts and loans, deductions from his weekly pay and other consumer related problems which he encounters from day to day.

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