15th Edition

ISBN: 9781938168994

Author: OpenStax

Publisher: OpenStax

Concept explainers

A percentage is a number indicated as a fraction of 100. It is a dimensionless number often expressed using the symbol %.

Algebraic Expressions

In mathematics, an algebraic expression consists of constant(s), variable(s), and mathematical operators. It is made up of terms.

Numbers

Numbers are some measures used for counting. They can be compared one with another to know its position in the number line and determine which one is greater or lesser than the other.

Subtraction

Before we begin to understand the subtraction of algebraic expressions, we need to list out a few things that form the basis of algebra.

Addition

Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.

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Textbook Question

Chapter 8.4, Problem 251E

Writing Exercises251. Explain how to find the least common denominator of 3 8 , 1 6 , a n d 2 3 .

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Chapter 8.4, Problem 250E

Chapter 8.4, Problem 252E

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Chapter 8 Solutions

PREALGEBRA

Ch. 8.1 - TRY IT::8.1 Is y = 2/3 a solution for 9y+2=6y? Ch. 8.1 - TRY IT:: 8.2 Is y=2/5 a solution for 5y—3= 10y? Ch. 8.1 - TRY IT::8.3 Solve: x +9 = —7. Ch. 8.1 - TRY IT::8.4 Solve: x + 16= —4. Ch. 8.1 - TRY IT::8.5 Solve: n — 6 = —7. Ch. 8.1 - TRY IT:: 8.6 Solve: X — 5 = —9. Ch. 8.1 - TRY IT:: 8.7 Solve: p – 1/3 = 5/6 Ch. 8.1 - TRY IT::8.8 Solve: q – 1/2 = 1/6 Ch. 8.1 - TRY IT::8.9 Solve: b — 2.8 = 3.6. Ch. 8.1 - TRY IT::8.1O Solve: c—6.9=7.1.

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Writing Exercises251. Explain how to find the least common denominator of 3 8 , 1 6 , a n d 2 3 .

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