Elementary Algebra17th EditionLynn Marecek, MaryAnne Anthony-Smith Publisher: OpenStax - Rice UniversityISBN: 9780998625713
Elementary Algebra
Solutions for Elementary Algebra
Problem 5.25TI:
Solve the system by substitution. {2x+y=11x+3y=9Problem 5.26TI:
Solve the system by substitution. {x+3y=104x+y=18Problem 5.27TI:
Solve the system by substitution. {x+y=6y=3x2Problem 5.28TI:
Solve the system by substitution. {2xy=1y=3x6Problem 5.29TI:
Solve the system by substitution. {4x+y=23x+2y=1Problem 5.30TI:
Solve the system by substitution. {x+y=44xy=2Problem 5.31TI:
Solve the system by substitution. {x5y=134x3y=1Problem 5.32TI:
Solve the system by substitution. {x6y=62x4y=4Problem 5.33TI:
Solve the system by substitution. {y=3x16y= 1 3xProblem 5.34TI:
Solve the system by substitution. {y=x+10y= 1 4xProblem 5.35TI:
Solve the system by substitution. {x4y=43x+4y=0Problem 5.36TI:
Solve the system by substitution. {4xy=02x3y=5Problem 5.37TI:
Solve the system by substitution. {2x3y=1212y+8x=48Problem 5.38TI:
Solve the system by substitution. {5x+2y=124y10x=24Problem 5.39TI:
Solve the system by substitution. {3x+2y=9y= 3 2x+1Problem 5.40TI:
Solve the system by substitution. {5x3y=2y= 5 3x4Problem 5.41TI:
The sum of two numbers is 10. One number is 4 less than the other. Find the numbers.Problem 5.42TI:
The sum of two number is 6 . One number is 10 less than the other. Find the numbers.Problem 5.43TI:
The perimeter of a rectangle is 40. The length is 4 more than the width. Find the length and width...Problem 5.44TI:
The perimeter of a rectangle is 58. The length is 5 more than three times the width. Find the length...Problem 5.45TI:
The measure of one of the small angles of a right triangle is 2 more than 3 times the measure of the...Problem 5.46TI:
The measure of one of the small angles of a right triangle is 18 less than twice the measure of the...Problem 5.47TI:
Geraldine has been offered positions by two insurance companies. The first company pays a salary of...Problem 5.48TI:
Kenneth currently sells suits for company A at a salary of $22,000 plus a $10 commission for each...Problem 71E:
In the following exercises, solve the systems of equations by substitution. 71. {2x+y=43x2y=6Problem 72E:
In the following exercises, solve the systems of equations by substitution. 72. {2x+y=23xy=7Problem 73E:
In the following exercises, solve the systems of equations by substitution. 73. {x2y=52x3y=4Problem 74E:
In the following exercises, solve the systems of equations by substitution. 74. {x3y=92x+5y=4Problem 75E:
In the following exercises, solve the systems of equations by substitution. 75. {5x2y=6y=3x+3Problem 76E:
In the following exercises, solve the systems of equations by substitution. 76. {2x+2y=6y=3x+1Problem 77E:
In the following exercises, solve the systems of equations by substitution. 77. {2x+3y=3y=x+3Problem 78E:
In the following exercises, solve the systems of equations by substitution. 78. {2x+5y=14y=2x+2Problem 79E:
In the following exercises, solve the systems of equations by substitution. 79. {2x+5y=1y= 1 3x2Problem 80E:
In the following exercises, solve the systems of equations by substitution. 80. {3x+4y=1y= 2 5x+2Problem 81E:
In the following exercises, solve the systems of equations by substitution. 81. {3x2y=6y= 2 3x+2Problem 82E:
In the following exercises, solve the systems of equations by substitution. 82. {3x5y=3y= 1 2x5Problem 83E:
In the following exercises, solve the systems of equations by substitution. 83. {2x+y=10x+y=5Problem 84E:
In the following exercises, solve the systems of equations by substitution. 84. {2x+y=10x+2y=16Problem 85E:
In the following exercises, solve the systems of equations by substitution. 85. {3x+y=14x+y=15Problem 86E:
In the following exercises, solve the systems of equations by substitution. 86. {x+y=02x+3y=4Problem 87E:
In the following exercises, solve the systems of equations by substitution. 87. {x+3y=13x+5y=5Problem 88E:
In the following exercises, solve the systems of equations by substitution. 88. {x+2y=12x+3y=1Problem 89E:
In the following exercises, solve the systems of equations by substitution. 89. {2x+y=5x2y=15Problem 90E:
In the following exercises, solve the systems of equations by substitution. 90. {4x+y=10x2y=20Problem 91E:
In the following exercises, solve the systems of equations by substitution. 91. {y=2x1y= 1 3x+4Problem 92E:
In the following exercises, solve the systems of equations by substitution. 92. {y=x6y= 3 2x+4Problem 93E:
In the following exercises, solve the systems of equations by substitution. 93. {y=2x8y= 3 5x+6Problem 94E:
In the following exercises, solve the systems of equations by substitution. 94. {y=x1y=x+7Problem 95E:
In the following exercises, solve the systems of equations by substitution. 95. {4x+2y=88xy=1Problem 96E:
In the following exercises, solve the systems of equations by substitution. 96. {x12y=12x8y=6Problem 97E:
In the following exercises, solve the systems of equations by substitution. 97. {15x+2y=65x+2y=4Problem 98E:
In the following exercises, solve the systems of equations by substitution. 98. {2x15y=712x+2y=4Problem 99E:
In the following exercises, solve the systems of equations by substitution. 99. {y=3x6x2y=0Problem 100E:
In the following exercises, solve the systems of equations by substitution. 100. {x=2y4x8y=0Problem 101E:
In the following exercises, solve the systems of equations by substitution. 101. {2x+16y=8x8y=4Problem 102E:
In the following exercises, solve the systems of equations by substitution. 102. {15x+4y=630x8y=12Problem 103E:
In the following exercises, solve the systems of equations by substitution. 103. {y=4x4x+y=1Problem 104E:
In the following exercises, solve the systems of equations by substitution. 104. {y= 1 4xx+4y=8Problem 105E:
In the following exercises, solve the systems of equations by substitution. 105. {y= 7 8x+47x+8y=6Problem 106E:
In the following exercises, solve the systems of equations by substitution. 106. {y= 2 3x+52x+3y=11Problem 107E:
In the following exercises, translate to a system of equations and solve. 107. The sum of two...Problem 108E:
In the following exercises, translate to a system of equations and solve. 108. The sum of two...Problem 109E:
In the following exercises, translate to a system of equations and solve. 109. The sum of two...Problem 110E:
In the following exercises, translate to a system of equations and solve. 110. The perimeter of a...Problem 111E:
In the following exercises, translate to a system of equations and solve. 111. The perimeter of a...Problem 112E:
In the following exercises, translate to a system of equations and solve. 112. The perimeter of a...Problem 113E:
In the following exercises, translate to a system of equations and solve. 113. The perimeter of a...Problem 114E:
In the following exercises, translate to a system of equations and solve. 114. The measure of one of...Problem 115E:
In the following exercises, translate to a system of equations and solve. 115. The measure of one of...Problem 116E:
In the following exercises, translate to a system of equations and solve. 116. The measure of one of...Problem 117E:
In the following exercises, translate to a system of equations and solve. 117. The measure of one of...Problem 118E:
In the following exercises, translate to a system of equations and solve. 118. Maxim has been...Problem 119E:
In the following exercises, translate to a system of equations and solve. 119. Jackie has been...Problem 120E:
In the following exercises, translate to a system of equations and solve. 120. Amara currently sells...Problem 121E:
In the following exercises, translate to a system of equations and solve. 121. Mitchell currently...Problem 122E:
When Gloria spent 15 minutes on the elliptical trainer and then did circuit training for 30 minutes,...Problem 123E:
Stephanie left Riverside, California, driving her motorhome north on Interstate 15 towards Salt Lake...Browse All Chapters of This Textbook
Chapter 1 - FoundationsChapter 1.1 - Introduction To Whole NumbersChapter 1.2 - Use The Language Of AlgebraChapter 1.3 - Add And Subtract IntegersChapter 1.4 - Multiply And Divide IntegersChapter 1.5 - Visualize FractionsChapter 1.6 - Add And Subtract FractionsChapter 1.7 - DecimalsChapter 1.8 - The Real NumbersChapter 1.9 - Properties Of Real Numbers
Chapter 1.10 - Systems Of MeasurementChapter 2 - Solving Linear Equations And InequalitiesChapter 2.1 - Solve Equations Using The Subtraction And Addition Properties Of EqualityChapter 2.2 - Solve Equations Using The Division And Multiplication Properties Of EqualityChapter 2.3 - Solve Equations With Variables And Constants On Both SidesChapter 2.4 - Use A General Strategy To Solve Linear EquationsChapter 2.5 - Solve Equations With Fractions Or DecimalsChapter 2.6 - Solve A Formula For A Specific VariableChapter 2.7 - Solve Linear InequalitiesChapter 3 - Math ModelsChapter 3.1 - Use A Problem-solving StrategyChapter 3.2 - Solve Percent ApplicationsChapter 3.3 - Solve Mixture ApplicationsChapter 3.4 - Solve Geometry Applications: Triangles, Rectangles, And The Pythagorean TheoremChapter 3.5 - Solve Uniform Motion ApplicationsChapter 3.6 - Solve Applications With Linear InequalitiesChapter 4 - GraphsChapter 4.1 - Use The Rectangular Coordinate SystemChapter 4.2 - Graph Linear Equations In Two VariablesChapter 4.3 - Graph With InterceptsChapter 4.4 - Understand Slope Of A LineChapter 4.5 - Use The Slope–intercept Form Of An Equation Of A LineChapter 4.6 - Find The Equation Of A LineChapter 4.7 - Graphs Of Linear InequalitiesChapter 5 - Systems Of Linear EquationsChapter 5.1 - Solve Systems Of Equations By GraphingChapter 5.2 - Solve Systems Of Equations By SubstitutionChapter 5.3 - Solve Systems Of Equations By EliminationChapter 5.4 - Solve Applications With Systems Of EquationsChapter 5.5 - Solve Mixture Applications With Systems Of EquationsChapter 5.6 - Graphing Systems Of Linear InequalitiesChapter 6 - PolynomialsChapter 6.1 - Add And Subtract PolynomialsChapter 6.2 - Use Multiplication Properties Of ExponentsChapter 6.3 - Multiply PolynomialsChapter 6.4 - Special ProductsChapter 6.5 - Divide MonomialsChapter 6.6 - Divide PolynomialsChapter 6.7 - Integer Exponents And Scientific NotationChapter 7 - FactoringChapter 7.1 - Greatest Common Factor And Factor By GroupingChapter 7.2 - Factor Quadratic Trinomials With Leading Coefficient 1Chapter 7.3 - Factor Quadratic Trinomials With Leading Coefficient Other Than 1Chapter 7.4 - Factor Special ProductsChapter 7.5 - General Strategy For Factoring PolynomialsChapter 7.6 - Quadratic EquationsChapter 8 - Rational Expressions And EquationsChapter 8.1 - Simplify Rational ExpressionsChapter 8.2 - Multiply And Divide Rational ExpressionsChapter 8.3 - Add And Subtract Rational Expressions With A Common DenominatorChapter 8.4 - Add And Subtract Rational Expressions With Unlike DenominatorsChapter 8.5 - Simplify Complex Rational ExpressionsChapter 8.6 - Solve Rational EquationsChapter 8.7 - Solve Proportion And Similar Figure ApplicationsChapter 8.8 - Solve Uniform Motion And Work ApplicationsChapter 8.9 - Use Direct And Inverse VariationChapter 9 - Roots And RadicalsChapter 9.1 - Simplify And Use Square RootsChapter 9.2 - Simplify Square RootsChapter 9.3 - Add And Subtract Square RootsChapter 9.4 - Multiply Square RootsChapter 9.5 - Divide Square RootsChapter 9.6 - Solve Equations With Square RootsChapter 9.7 - Higher RootsChapter 9.8 - Rational ExponentsChapter 10 - Quadratic EquationsChapter 10.1 - Solve Quadratic Equations Using The Square Root PropertyChapter 10.2 - Solve Quadratic Equations By Completing The SquareChapter 10.3 - Solve Quadratic Equations Using The Quadratic FormulaChapter 10.4 - Solve Applications Modeled By Quadratic EquationsChapter 10.5 - Graphing Quadratic Equations
Sample Solutions for this Textbook
We offer sample solutions for Elementary Algebra homework problems. See examples below:
More Editions of This Book
Corresponding editions of this textbook are also available below:
ELEMENTARY ALGEBRA VOL 1-2
17th Edition
ISBN: 9781506698205
Elementary Algebra (OER)
17th Edition
ISBN: 9781947172258
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