PREALGEBRA15th EditionOpenStax Publisher: OpenStaxISBN: 9781938168994
PREALGEBRA
Solutions for PREALGEBRA
Problem 2.25TI:
Evaluate: y+4when (a) y=6 (b) y=15Problem 2.26TI:
Evaluate: a5When (a) a=9 (b) a=17Problem 2.27TI:
Evaluate: 8x3,when (a) x=2 (b) x=1Problem 2.28TI:
Evaluate: 4y4,when y=3(b) y=5Problem 2.29TI:
Evaluate: x2when x=8.Problem 2.30TI:
Evaluate: x3when x=6.Problem 2.31TI:
Evaluate: 2xWhen x=6.Problem 2.32TI:
Evaluate: 3xWhen x=4.Problem 2.33TI:
Evaluate: 2x+5y4when x=11and ? y=3Problem 2.34TI:
Evaluate: 5x2y9when x=7and y=8Problem 2.35TI:
Evaluate: 3x2+4x+1when x=3.Problem 2.36TI:
Evaluate: 6x24x7when x=2.Problem 2.41TI:
Simplify: 7x+9+9x+8Problem 2.42TI:
Simplify: 5y+2+8y+4y+5Problem 2.43TI:
Simplify: 3x2+9x+x2+5xProblem 2.44TI:
Simplify: 11y2+8y+y2+7yProblem 2.45TI:
Translate the given word phrase into an algebraic expression: the difference of 47and 41 (b) the...Problem 2.46TI:
Translate the given word phrase into an algebraic expression: the difference of 17and 19 (b) the...Problem 2.47TI:
Translate the given word phrase into an algebraic expression: Eleven more than x (b) Fourteen less...Problem 2.48TI:
Translate each word phrase into an algebraic expression: (a) 19more than j (b) 21less than 2xProblem 2.49TI:
Translate each word phrase into an algebraic expression: Four times the sum of pand q (b) the sum of...Problem 2.50TI:
Translate each word phrase into an algebraic expression: The difference of two times xand 8 (b) two...Problem 2.51TI:
The length of a rectangle s 5inches less than the width. Let wrepresent the width of the rectangle....Problem 2.52TI:
The width of a rectangle is 2meters greater than the length. Let lrepresent the length of the...Problem 2.53TI:
Geoffrey has dimes and quarters in his pocket. The number of dimes s seven less than six times the...Problem 2.54TI:
Lauren has dimes and nickels in her purse. The number of dimes is eight more than four times the...Problem 79E:
In the following exercises, evaluate the expression for the given value. x2+3x7when x=4Problem 80E:
In the following exercises, evaluate the expression for the given value. x2+5x8when x=6Problem 81E:
In the following exercises, evaluate the expression for the given value. 2x+4y5when x=7, y=8Problem 82E:
In the following exercises, evaluate the expression for the given value. 6x+3y9when x=6,? y=9Problem 83E:
In the following exercises, evaluate the expression for the given value. (xy)2when x=10, y=7sProblem 84E:
In the following exercises, evaluate the expression for the given value. (x+y)2when x=6, y=9Problem 85E:
In the following exercises, evaluate the expression for the given value. a2+b2when a=3, b=8Problem 86E:
In the following exercises, evaluate the expression for the given value. r2s2when r=12, s=5Problem 87E:
In the following exercises, evaluate the expression for the given value. 2l+2wwhen l=15, w=12Problem 88E:
In the following exercises, evaluate the expression for the given value. 2l+2wwhen l=18, w=14Problem 99E:
In the following exercises, identify all sets of like terms. 9a, a2, 16ab, 16b2, 4ab, 9b2Problem 100E:
In the following exercises, identify all sets of like terms. 3, 25r2, 10s, 10r, 4r2, 3sProblem 101E:
In the following exercises, simplify the given expression by combining like terms. 10x+3xProblem 102E:
In the following exercises, simplify the given expression by combining like terms. 15x+4xProblem 103E:
In the following exercises, simplify the given expression by combining like terms. 17a+9aProblem 104E:
In the following exercises, simplify the given expression by combining like terms. 18z+9zProblem 105E:
In the following exercises, simplify the given expression by combining like terms. 4c+2c+cProblem 106E:
In the following exercises, simplify the given expression by combining like terms. 6y+4y+yProblem 107E:
In the following exercises, simplify the given expression by combining like terms. 9x+3x+8Problem 108E:
In the following exercises, simplify the given expression by combining like terms. 8a+5a+9Problem 109E:
In the following exercises, simplify the given expression by combining like terms. 7u+2+3u+1Problem 110E:
In the following exercises, simplify the given expression by combining like terms. 8d+6+2d+5Problem 111E:
In the following exercises, simplify the given expression by combining like terms. 7p+6+5p+4Problem 112E:
In the following exercises, simplify the given expression by combining like terms. 8x+7+4x5Problem 113E:
In the following exercises, simplify the given expression by combining like terms. 10a+7+5a2+7a4Problem 114E:
In the following exercises, simplify the given expression by combining like terms. 7c+4+6c3+9c1Problem 116E:
In the following exercises, simplify the given expression by combining like terms. 5b2+9b+10+2b2+3b4Problem 117E:
In the following exercises, translate the given word phrase into an algebraic expression. The sum of...Problem 118E:
In the following exercises, translate the given word phrase into an algebraic expression. The sum of...Problem 119E:
In the following exercises, translate the given word phrase into an algebraic expression. The...Problem 120E:
In the following exercises, translate the given word phrase into an algebraic expression. 8 less...Problem 121E:
In the following exercises, translate the given word phrase into an algebraic expression. The...Problem 122E:
In the following exercises, translate the given word phrase into an algebraic expression. The...Problem 123E:
In the following exercises, translate the given word phrase into an algebraic expression. The...Problem 124E:
In the following exercises, translate the given word phrase into an algebraic expression. The...Problem 125E:
In the following exercises, translate the given word phrase into an algebraic expression. The...Problem 126E:
In the following exercises, translate the given word phrase into an algebraic expression. 3 less...Problem 127E:
In the following exercises, translate the given word phrase into an algebraic expression. The...Problem 128E:
In the following exercises, translate the given word phrase into an algebraic expression. The...Problem 129E:
In the following exercises, translate the given word phrase into an algebraic expression. The sum of...Problem 130E:
In the following exercises, translate the given word phrase into an algebraic expression. The sum of...Problem 131E:
In the following exercises, translate the given word phrase into an algebraic expression. The...Problem 132E:
In the following exercises, translate the given word phrase into an algebraic expression. The...Problem 133E:
In the following exercises, translate the given word phrase into an algebraic expression. Eight...Problem 134E:
In the following exercises, translate the given word phrase into an algebraic expression. Seven...Problem 135E:
In the following exercises, translate the given word phrase into an algebraic expression. Five times...Problem 136E:
In the following exercises, translate the given word phrase into an algebraic expression. Nine times...Problem 137E:
In the following exercises, translate, write an algebraic expression. Adele bought a skirt and a...Problem 138E:
In the following exercises, write an algebraic expression. Eric has rock and classical CDs in his...Problem 139E:
In the following exercises, write an algebraic expression. The number of girls in a second-grade...Problem 140E:
In the following exercises, write an algebraic expression. Marcella has 6fewer male cousins than...Problem 141E:
In the following exercises, write an algebraic expression. Greg has nickels and pennies in his...Problem 142E:
In the following exercises, write an algebraic expression. Jeannette has $5 and $10 bills in her...Problem 143E:
In the following exercises, write an algebraic expression to solve the problem 143. Car insurance...Problem 144E:
In the following exercises, write an algebraic expression to solve the problem 144. Home insurance...Browse All Chapters of This Textbook
Chapter 1 - Whole NumbersChapter 1.1 - Introduction To Whole NumbersChapter 1.2 - Add Whole NumbersChapter 1.3 - Subtract Whole NumbersChapter 1.4 - Multiply Whole NumbersChapter 1.5 - Divide Whole NumbersChapter 2 - The Language Of AlgebraChapter 2.1 - Use The Language Of AlgebraChapter 2.2 - Evaluate, Simplify, And Translate ExpressionsChapter 2.3 - Solving Equations Using The Subtraction And Addition Properties Of Equality
Chapter 2.4 - Find Multiples And FactorsChapter 2.5 - Prime Factorization And The Least Common MultipleChapter 3 - IntegersChapter 3.1 - Introduction To IntegersChapter 3.2 - Add IntegersChapter 3.3 - Subtract IntegersChapter 3.4 - Multiply And Divide IntegersChapter 3.5 - Solve Equations Using Integers; The Division Property Of EqualityChapter 4 - FractionsChapter 4.1 - Visualize FractionsChapter 4.2 - Multiply And Divide FractionsChapter 4.3 - Multiply And Divide Mixed Numbers And Complex FractionsChapter 4.4 - Add And Subtract Fractions With Common DenominatorsChapter 4.5 - Add And Subtract Fractions With Different DenominatorsChapter 4.6 - Add And Subtract Mixed NumbersChapter 4.7 - Solve Equations With FractionsChapter 5 - DecimalsChapter 5.1 - DecimalsChapter 5.2 - Decimal OperationsChapter 5.3 - Decimals And FractionsChapter 5.4 - Solve Equations With DecimalsChapter 5.5 - Averages And ProbabilityChapter 5.6 - Ratios And RateChapter 5.7 - Simplify And Use Square RootsChapter 6 - PercentsChapter 6.1 - Understand PercentChapter 6.2 - Solve General Applications Of PercentChapter 6.3 - Solve Sales Tax, Commission, And Discount ApplicationsChapter 6.4 - Solve Simple Interest ApplicationsChapter 6.5 - Solve Proportions And Their ApplicationsChapter 7 - The Properties Of Real NumbersChapter 7.1 - Rational And Irrational NumbersChapter 7.2 - Commutative And Associative PropertiesChapter 7.3 - Distributive PropertyChapter 7.4 - Properties Of Identity, Inverses, And ZeroChapter 7.5 - Systems Of MeasurementChapter 8 - Solving Linear EquationsChapter 8.1 - Solve Equations Using The Subtraction And Addition Properties Of EqualityChapter 8.2 - Solve Equations Using The Division And Multiplication Properties Of EqualityChapter 8.3 - Solve Equations With Variables And Constants On Both SidesChapter 8.4 - Solve Equations With Fraction Or Decimal CoefficientsChapter 9 - Math Models And GeometryChapter 9.1 - Use A Problem Solving StrategyChapter 9.2 - Solve Money ApplicationsChapter 9.3 - Use Properties Of Angles, Triangles, And The Pythagorean TheoremChapter 9.4 - Use Properties Of Rectangles, Triangles, And TrapezoidsChapter 9.5 - Solve Geometry Applications: Circles And Irregular FiguresChapter 9.6 - Solve Geometry Applications: Volume And Surface AreaChapter 9.7 - Solve A Formula For A Specific VariableChapter 10 - PolynomialsChapter 10.1 - Add And Subtract PolynomialsChapter 10.2 - Use Multiplication Properties Of ExponentsChapter 10.3 - Multiply PolynomialsChapter 10.4 - Divide MonomialsChapter 10.5 - Integer Exponents And Scientific NotationChapter 10.6 - Introduction To Factoring PolynomialsChapter 11 - GraphsChapter 11.1 - Use The Rectangular Coordinate SystemChapter 11.2 - Graphing Linear EquationsChapter 11.3 - Graphing With InterceptsChapter 11.4 - Understand Slope Of A Line
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