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Unformatted text preview: Chapter 6 Percent MartinGay, Basic College Mathematics with Early Integers 2 MartinGay, Basic College Mathematics with Early Integers 6.1 – Percents, Decimals, and Fractions 6.2 – Solving Percent Problems Using Equations 6.3 – Solving Percent Problems Using Proportions 6.4 – Applications of Percents 6.5 – Percent and Problem Solving: Sales Tax and Commissio 6.6 – Percent and Problem Solving: Interest Chapter Sections § 6.1 Percents, Decimals, and Fractions MartinGay, Basic College Mathematics with Early Integers 4 MartinGay, Basic College Mathematics with Early Integers Understanding Percent Step Example Percent : Means per one hundred, the “%” symbol is used to denote percent. 48 of 100 squares are shaded or 48% is shaded. % 48 100 48 = MartinGay, Basic College Mathematics with Early Integers 5 MartinGay, Basic College Mathematics with Early Integers Writing Percent as Decimals EXAMPLE EXAMPLE SOLUTION SOLUTION 67% of American men are happy with their current weight. Convert this percentage into a decimal. ( Source: Gallup for Wheat Foods Council) Replace the “%” symbol with its decimal equivalent. .67 of American men are happy with their current weight. % 67 ) 01 . ( 67 67 . ) 01 . ( 67 = MartinGay, Basic College Mathematics with Early Integers 6 MartinGay, Basic College Mathematics with Early Integers Writing Decimals as Percents EXAMPLE EXAMPLE SOLUTION SOLUTION The Munoz family saves 0.10 of their takehome pay. Convert this decimal to a percent. Multiply the decimal by 1 in the form of 100%. The Munoz family saves 10% of their takehome pay. %) 100 ( 10 . 10% or .% 10 = 10 . %) 100 ( 10 . MartinGay, Basic College Mathematics with Early Integers 7 MartinGay, Basic College Mathematics with Early Integers Writing Percents as Fractions EXAMPLE EXAMPLE SOLUTION SOLUTION Write 4.5% as a fraction or mixed number in simplest form....
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This note was uploaded on 03/24/2012 for the course MTH 090 taught by Professor Garypiercy,christopherriola during the Spring '09 term at Moraine Valley Community College.
 Spring '09
 GaryPiercy,ChristopherRiola
 Decimals, Equations, Fractions

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