PREALGEBRA15th EditionOpenStax Publisher: OpenStaxISBN: 9781938168994
PREALGEBRA
Solutions for PREALGEBRA
Problem 3.27TI:
TRY IT :: 3.27 Model the expression. 2+4Problem 3.28TI:
TRY IT : : 3.28 Model the expression. 2+5Problem 3.29TI:
TRY IT :: 3.29 Model the expression. 2+(4)Problem 3.30TI:
TRY IT :: 3.30 Model the expression. 2+(5)Problem 3.31TI:
TRY IT :: 3.31 Model the expression, and then simplify: 2+(4)Problem 3.32TI:
TRY IT :: 3.32 Model the expression, and then simplify: 2+(5)Problem 3.33TI:
TRY IT :: 3.33 Model the expression, and then simplify: (2)+4Problem 3.34TI:
TRY IT :: 3.34 Model the expression: (2)+5Problem 3.36TI:
TRY IT :: 3.36 a. 5+1 b. 3+7 c. 2+(8) d. 3+(4)Problem 3.37TI:
TRY IT :: 3.37 Simplify each expression: a. 15+(32) b. 19+76Problem 3.38TI:
TRY IT :: 3.38 Simplify each expression: a. 55+9 b. 43+(17)Problem 3.39TI:
TRY IT :: 3.39 Simplify each expression: 31+(19)Problem 3.40TI:
TRY IT :: 3.40 Simplify each expression: 42+(28)Problem 3.41TI:
TRY IT :: 3.41 Simplify each expression: 2+5(4+7)Problem 3.42TI:
TRY IT :: 3.42 Simplify each expression: 4+2(3+5)Problem 3.43TI:
TRY IT :: 3.43 Evaluate each expression for the given values: x+5when a. x=3and b. x=17Problem 3.44TI:
TRY IT :: 3.44 Evaluate each expression for the given values: y+7when a. y=5and b. y=8Problem 3.45TI:
TRY IT :: 3.45 When n=8, Evaluate a. n+2 b. n+2Problem 3.46TI:
TRY IT :: 3.46 When y=9, evaluate a. y+8 b. y+8Problem 3.47TI:
TRY IT :: 3.47 Evaluate the expression: a+2bwhen a=19and b=14.Problem 3.48TI:
TRY IT :: 3.48 Evaluate the expression: 5p+qwhen p=4and q=7.Problem 3.49TI:
TRY IT :: 3.49 Evaluate: (x+y)2when x=15and y=29.Problem 3.50TI:
TRY IT :: 3.50 Evaluate: (x+y)3when x=8and y=10.Problem 3.55TI:
TRY IT :: 3.55 The temperature in Chicago at 5 A.M. was 10 degrees below zero Celsius. Six hours...Problem 3.56TI:
TRY IT :: 3.56 A scuba diver was swimming 16 feet below the surface and then dove down another 17...Problem 3.57TI:
TRY IT :: 3.57 The Bears took possession of the football on their 20-yard line. In the next three...Problem 3.58TI:
TRY IT:: 3.58 The Chargers began with the football on their 25-yard line. They gained 5 yards, lost...Problem 91E:
In the following exercises, evaluate each expression. When a=7, evaluate: a. a+3 b. a+3Problem 92E:
In the following exercises, evaluate each expression. When b=11, evaluate: a. b+6 b. b+6Problem 93E:
In the following exercises, evaluate each expression. When c=9, evaluate: a. c+(4) b. c+(4)Problem 94E:
In the following exercises, evaluate each expression. When d=8, evaluate: a. d+(9) b. d+(9)Problem 103E:
In the following exercises, translate each phrase into an algebraic expression and then simplify....Problem 104E:
In the following exercises, translate each phrase into an algebraic expression and then simplify....Problem 105E:
In the following exercises, translate each phrase into an algebraic expression and then simplify. 8...Problem 106E:
In the following exercises, translate each phrase into an algebraic expression and then simplify 5...Problem 107E:
In the following exercises, translate each phrase into an algebraic expression and then simplify....Problem 108E:
In the following exercises, translate each phrase into an algebraic expression and then simplify. -6...Problem 109E:
In the following exercises, translate each phrase into an algebraic expression and then simplify. 6...Problem 110E:
In the following exercises, translate each phrase into an algebraic expression and then simplify. 3...Problem 111E:
In the following exercises, translate each phrase into an algebraic expression and then simplify....Problem 112E:
In the following exercises, translate each phrase into an algebraic expression and then simplify....Problem 113E:
In the following exercises, solve. Temperature The temperature in St. Paul, Minnesota was -19°F at...Problem 114E:
In the following exercises, solve. Temperature The temperature in Chicago was -15°F at 6 am. By...Problem 115E:
In the following exercises, solve. Credit Cards Lupe owes $73 on her credit card. Then she charges...Problem 116E:
In the following exercises, solve. Credit Cards Frank owes $212 on his credit card. Then he charges...Problem 117E:
In the following exercises, solve. Weight Loss Angie lost 3 pounds the first week of her diet. Over...Problem 118E:
In the following exercises, solve. Weight Loss April lost 5 pounds the first week of her diet. Over...Problem 119E:
In the following exercises, solve. Football The Rams took possession of the football on their own...Problem 120E:
In the following exercises, solve. Football The Cowboys began with the ball on their own 20-yard...Problem 121E:
In the following exercises, solve. Calories Lisbeth walked from her house to get a frozen yogurt,...Problem 122E:
In the following exercises, solve. Calories Ozzie rode his bike for 30 minutes, burning 168...Problem 123E:
In the following exercises, solve. Stock Market The week of September 15, 2008, was one of the most...Problem 124E:
In the following exercises, solve. Stock Market During the week of June 22, 2009, the change in the...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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