5th Edition

ISBN: 9781323741559

Author: Tannenbaum

Publisher: PEARSON C

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 3, Problem 25E

Mark, Tim, Maia, and Kelly are dividing a cake among themselves using the lone-divider method. The divider divides the cake into four slices ( s 1 , s 2 , s 3 , and s 4 ) . T a b l e 3 - 1 8 shows the values of the slices to each player expressed as a percent of the total value of the cake.

Table 3 − 1 8


Mark	20%	32%	28%	20%
Tim	25%	25%	25%	25%
Maia	15%	15%	30%	40%
Kelly	24%	24%	24%	28%

a. Who was the divider?

b. Find a fair division of the cake.

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Chapter 3, Problem 24E

Chapter 3, Problem 26E

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Chapter 3 Solutions

EXCURSIONS IN MODERN MATH

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