MyLab Math with Pearson eText -- Standalone Access Card -- for Prealgebra (6th Edition)
MyLab Math with Pearson eText -- Standalone Access Card -- for Prealgebra (6th Edition)
6th Edition
ISBN: 9780134763811
Author: Margaret L. Lial, Diana Hestwood
Publisher: PEARSON
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Concept explainers

Percentage
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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Chapter 3.3, Problem 21E
To determine

To write:

The algebraic expression for the statement “The sum of twice a number and the number” by using x as the variable.

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Chapter 3 Solutions

MyLab Math with Pearson eText -- Standalone Access Card -- for Prealgebra (6th Edition)

Ch. 3.1 - Find the perimeter of each square, using the...Ch. 3.1 - Prob. 2CPCh. 3.1 - Prob. 3CPCh. 3.1 - Prob. 4CPCh. 3.1 - Prob. 5CPCh. 3.1 - Find the perimeter of each triangle. a p=31mm++p=...Ch. 3.1 - Prob. 7CPCh. 3.1 - Prob. 1ECh. 3.1 - Prob. 2ECh. 3.1 - Prob. 3E
Ch. 3.1 - Prob. 4ECh. 3.1 - Prob. 5ECh. 3.1 - Prob. 6ECh. 3.1 - Draw a sketch of each square and label the lengths...Ch. 3.1 - Prob. 8ECh. 3.1 - Prob. 9ECh. 3.1 - Prob. 10ECh. 3.1 - Prob. 11ECh. 3.1 - Prob. 12ECh. 3.1 - Prob. 13ECh. 3.1 - Prob. 14ECh. 3.1 - Prob. 15ECh. 3.1 - Prob. 16ECh. 3.1 - Prob. 17ECh. 3.1 - Prob. 18ECh. 3.1 - Prob. 19ECh. 3.1 - Prob. 20ECh. 3.1 - Prob. 21ECh. 3.1 - Prob. 22ECh. 3.1 - Prob. 23ECh. 3.1 - Prob. 24ECh. 3.1 - Prob. 25ECh. 3.1 - Prob. 26ECh. 3.1 - Prob. 27ECh. 3.1 - Prob. 28ECh. 3.1 - Prob. 29ECh. 3.1 - Prob. 30ECh. 3.1 - Prob. 31ECh. 3.1 - Prob. 32ECh. 3.1 - Prob. 33ECh. 3.1 - Prob. 34ECh. 3.1 - Prob. 35ECh. 3.1 - Prob. 36ECh. 3.1 - Prob. 37ECh. 3.1 - Prob. 38ECh. 3.1 - Prob. 39ECh. 3.1 - Prob. 40ECh. 3.1 - Prob. 41ECh. 3.1 - Prob. 42ECh. 3.1 - Prob. 43ECh. 3.1 - Prob. 44ECh. 3.1 - Prob. 45ECh. 3.1 - Prob. 46ECh. 3.1 - Prob. 47ECh. 3.1 - Prob. 48ECh. 3.1 - In an equilateral triangle, all sides have the...Ch. 3.1 - Be sure that you have done Exercise 49 first. a...Ch. 3.1 - Prob. 51ECh. 3.1 - Prob. 52ECh. 3.1 - Prob. 53ECh. 3.1 - Prob. 54ECh. 3.2 - Prob. 1CPCh. 3.2 - Prob. 2CPCh. 3.2 - Prob. 3CPCh. 3.2 - Prob. 4CPCh. 3.2 - Prob. 5CPCh. 3.2 - Prob. 6CPCh. 3.2 - Prob. 7CPCh. 3.2 - Prob. 1ECh. 3.2 - Prob. 2ECh. 3.2 - Prob. 3ECh. 3.2 - Prob. 4ECh. 3.2 - Prob. 5ECh. 3.2 - Prob. 6ECh. 3.2 - Prob. 7ECh. 3.2 - Prob. 8ECh. 3.2 - Prob. 9ECh. 3.2 - Prob. 10ECh. 3.2 - Prob. 11ECh. 3.2 - Prob. 12ECh. 3.2 - Prob. 13ECh. 3.2 - Prob. 14ECh. 3.2 - Prob. 15ECh. 3.2 - Prob. 16ECh. 3.2 - Prob. 17ECh. 3.2 - Prob. 18ECh. 3.2 - Prob. 19ECh. 3.2 - Prob. 20ECh. 3.2 - Prob. 21ECh. 3.2 - Prob. 22ECh. 3.2 - Prob. 23ECh. 3.2 - Prob. 24ECh. 3.2 - Prob. 25ECh. 3.2 - Prob. 26ECh. 3.2 - Prob. 27ECh. 3.2 - Prob. 28ECh. 3.2 - Prob. 29ECh. 3.2 - Prob. 30ECh. 3.2 - Prob. 31ECh. 3.2 - Prob. 32ECh. 3.2 - Prob. 33ECh. 3.2 - Prob. 34ECh. 3.2 - Prob. 35ECh. 3.2 - Prob. 36ECh. 3.2 - Prob. 37ECh. 3.2 - Prob. 38ECh. 3.2 - Prob. 39ECh. 3.2 - Prob. 40ECh. 3.2 - Prob. 41ECh. 3.2 - Prob. 42ECh. 3.2 - Prob. 43ECh. 3.2 - Prob. 44ECh. 3.2 - Prob. 45ECh. 3.2 - Prob. 46ECh. 3.2 - Solve each application problem to find the...Ch. 3.2 - Prob. 48ECh. 3.2 - Prob. 49ECh. 3.2 - Prob. 50ECh. 3.2 - Prob. 51ECh. 3.2 - Use your knowledge of perimeter and area to work...Ch. 3.SE - Prob. 1SECh. 3.SE - Prob. 2SECh. 3.SE - Name each figure and find its perimeter and area...Ch. 3.SE - Prob. 4SECh. 3.SE - Prob. 5SECh. 3.SE - Prob. 6SECh. 3.SE - Prob. 7SECh. 3.SE - Name each figure and find its perimeter and area...Ch. 3.SE - Prob. 9SECh. 3.SE - Prob. 10SECh. 3.SE - Prob. 11SECh. 3.SE - Prob. 12SECh. 3.SE - Prob. 13SECh. 3.SE - Prob. 14SECh. 3.SE - Prob. 15SECh. 3.SE - Prob. 16SECh. 3.SE - Prob. 17SECh. 3.SE - Prob. 18SECh. 3.SE - Prob. 19SECh. 3.SE - Prob. 20SECh. 3.3 - Prob. 1CPCh. 3.3 - Prob. 2CPCh. 3.3 - Prob. 3CPCh. 3.3 - Prob. 4CPCh. 3.3 - Five donors each gave the same amount of money to...Ch. 3.3 - Prob. 6CPCh. 3.3 - Prob. 1ECh. 3.3 - Prob. 2ECh. 3.3 - Prob. 3ECh. 3.3 - Prob. 4ECh. 3.3 - Prob. 5ECh. 3.3 - Prob. 6ECh. 3.3 - Write an algebraic expression, using x as the...Ch. 3.3 - Prob. 8ECh. 3.3 - Prob. 9ECh. 3.3 - Write an algebraic expression, using x as the...Ch. 3.3 - Prob. 11ECh. 3.3 - Prob. 12ECh. 3.3 - Prob. 13ECh. 3.3 - Prob. 14ECh. 3.3 - Prob. 15ECh. 3.3 - Prob. 16ECh. 3.3 - Prob. 17ECh. 3.3 - Prob. 18ECh. 3.3 - Prob. 19ECh. 3.3 - Prob. 20ECh. 3.3 - Prob. 21ECh. 3.3 - Prob. 22ECh. 3.3 - Prob. 23ECh. 3.3 - Prob. 24ECh. 3.3 - Prob. 25ECh. 3.3 - Prob. 26ECh. 3.3 - Prob. 27ECh. 3.3 - Prob. 28ECh. 3.3 - Prob. 29ECh. 3.3 - Prob. 30ECh. 3.3 - Prob. 31ECh. 3.3 - Prob. 32ECh. 3.3 - Solve each application problem. Use the six...Ch. 3.3 - Prob. 34ECh. 3.3 - Prob. 35ECh. 3.3 - Prob. 36ECh. 3.3 - Prob. 37ECh. 3.3 - Solve each application problem. Use the six...Ch. 3.3 - Prob. 39ECh. 3.3 - Prob. 40ECh. 3.3 - Prob. 41ECh. 3.3 - Prob. 42ECh. 3.3 - Solve each application problem. Use the six...Ch. 3.3 - Prob. 44ECh. 3.3 - Prob. 45ECh. 3.3 - Prob. 46ECh. 3.4 - Prob. 1CPCh. 3.4 - Prob. 2CPCh. 3.4 - Prob. 3CPCh. 3.4 - Prob. 1ECh. 3.4 - Prob. 2ECh. 3.4 - Solve each application problem using the six...Ch. 3.4 - Prob. 4ECh. 3.4 - Solve each application problem using the six...Ch. 3.4 - Prob. 6ECh. 3.4 - Solve each application problem using the six...Ch. 3.4 - Prob. 8ECh. 3.4 - Solve each application problem using the six...Ch. 3.4 - Prob. 10ECh. 3.4 - Solve each application problem using the six...Ch. 3.4 - Prob. 12ECh. 3.4 - Prob. 13ECh. 3.4 - Solve each application problem using the six...Ch. 3.4 - Prob. 15ECh. 3.4 - Prob. 16ECh. 3.4 - Prob. 17ECh. 3.4 - Prob. 18ECh. 3.4 - Prob. 19ECh. 3.4 - Prob. 20ECh. 3.4 - Prob. 21ECh. 3.4 - In Exercises 17 22, use the formula for the...Ch. 3.4 - A photograph measures 8in. by 10in. Earl put it in...Ch. 3.4 - Prob. 24ECh. 3.TYW - Prob. 1TYWCh. 3.TYW - Prob. 2TYWCh. 3.TYW - Prob. 3TYWCh. 3.TYW - Prob. 4TYWCh. 3.TYW - Prob. 5TYWCh. 3.TYW - Prob. 6TYWCh. 3.CR - Prob. 1CRCh. 3.CR - Prob. 2CRCh. 3.CR - Prob. 3CRCh. 3.CR - Prob. 4CRCh. 3.CR - Prob. 5CRCh. 3.CR - Prob. 6CRCh. 3.CR - Prob. 7CRCh. 3.CR - In Exercises 8-10, draw a sketch of each shape...Ch. 3.CR - Prob. 9CRCh. 3.CR - Prob. 10CRCh. 3.CR - In Exercises 11-13, use the appropriate formula to...Ch. 3.CR - Prob. 12CRCh. 3.CR - Prob. 13CRCh. 3.CR - Write each phrase as an algebraic expression. Use...Ch. 3.CR - Prob. 15CRCh. 3.CR - Prob. 16CRCh. 3.CR - Prob. 17CRCh. 3.CR - Prob. 18CRCh. 3.CR - Prob. 19CRCh. 3.CR - Prob. 20CRCh. 3.CR - Prob. 21CRCh. 3.CR - Use the six problem-solving steps to solve each...Ch. 3.CR - Prob. 23CRCh. 3.CR - Use the six problem-solving steps to solve each...Ch. 3.CR - Prob. 25CRCh. 3.CR - Prob. 26CRCh. 3.MRE - Prob. 1MRECh. 3.MRE - Prob. 2MRECh. 3.MRE - Prob. 3MRECh. 3.MRE - Prob. 4MRECh. 3.MRE - Prob. 5MRECh. 3.MRE - Prob. 6MRECh. 3.MRE - Prob. 7MRECh. 3.MRE - Prob. 8MRECh. 3.MRE - Use the information in the advertisement and the...Ch. 3.MRE - Prob. 10MRECh. 3.CT - Prob. 1CTCh. 3.CT - Prob. 2CTCh. 3.CT - Prob. 3CTCh. 3.CT - Prob. 4CTCh. 3.CT - Prob. 5CTCh. 3.CT - Prob. 6CTCh. 3.CT - Prob. 7CTCh. 3.CT - Prob. 8CTCh. 3.CT - Prob. 9CTCh. 3.CT - Prob. 10CTCh. 3.CT - Prob. 11CTCh. 3.CT - Prob. 12CTCh. 3.CT - Prob. 13CTCh. 3.CT - Prob. 14CTCh. 3.CT - Prob. 15CTCh. 3.CT - Prob. 16CTCh. 3.CT - Prob. 17CTCh. 3.CT - Solve each application problem, using the six...Ch. 3.CT - Prob. 19CTCh. 3.CT - Prob. 20CTCh. 3.CT - Prob. 21CTCh. 3.CM - Prob. 1CMCh. 3.CM - Prob. 2CMCh. 3.CM - Prob. 3CMCh. 3.CM - Prob. 4CMCh. 3.CM - a Round 3795 to the nearest ten. b Round 493, 662...Ch. 3.CM - Prob. 6CMCh. 3.CM - Prob. 7CMCh. 3.CM - Prob. 8CMCh. 3.CM - Prob. 9CMCh. 3.CM - Prob. 10CMCh. 3.CM - Prob. 11CMCh. 3.CM - Prob. 12CMCh. 3.CM - Prob. 13CMCh. 3.CM - Prob. 14CMCh. 3.CM - Prob. 15CMCh. 3.CM - Prob. 16CMCh. 3.CM - Prob. 17CMCh. 3.CM - Prob. 18CMCh. 3.CM - Prob. 19CMCh. 3.CM - Prob. 20CMCh. 3.CM - Prob. 21CMCh. 3.CM - Prob. 22CMCh. 3.CM - Prob. 23CMCh. 3.CM - Prob. 24CMCh. 3.CM - Prob. 25CMCh. 3.CM - Prob. 26CMCh. 3.CM - Prob. 27CMCh. 3.CM - Prob. 28CMCh. 3.CM - Prob. 29CMCh. 3.CM - Find the perimeter and area of each shape. The...Ch. 3.CM - Prob. 31CMCh. 3.CM - Prob. 32CMCh. 3.CM - Prob. 33CMCh. 3.CM - Prob. 34CMCh. 3.CM - Prob. 35CMCh. 3.CM - Prob. 36CMCh. 3.CM - Prob. 37CMCh. 3.CM - Prob. 38CM
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