Test Bank for Algebra: A Combined Approach, 6th Edition

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TestAnswers

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Tests (T)Chapter R .......................................................................................................................................... 1Chapter 1......................................................................................................................................... 21Chapter 2......................................................................................................................................... 41Chapter 3......................................................................................................................................... 57Chapter 4......................................................................................................................................... 85Chapter 5....................................................................................................................................... 101Chapter 6....................................................................................................................................... 121Chapter 7....................................................................................................................................... 137Chapter 8....................................................................................................................................... 157Chapter 9....................................................................................................................................... 189Chapter 10..................................................................................................................................... 217Chapter 11..................................................................................................................................... 237Chapter 12..................................................................................................................................... 253Chapter 13..................................................................................................................................... 273Final Exam .................................................................................................................................... 293Test Answers................................................................................................................................. 305Final Exam Answers ..................................................................................................................... 345iv

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T-1Chapter R Pretest Form AName:Date:1.List the factors of 24.1._______________2.Write the prime factorization of 750.2._______________3.Find the LCM of 6, 14, and 18.3._______________4.Write712as an equivalent expression with a denominator of 60.4._______________5.Simplify28 .425._______________Perform the indicated operations and simplify.6.3487⋅6._______________7.1365+7._______________8.2395÷8._______________9.3153−9._______________10.134638+10.______________11.38 9 4⋅11.______________

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T-2Chapter R Pretest Form A (cont.)Name:Perform the indicated operations.12.270.42.07++12.______________13.1912.37−13.______________14.14.7 0.12⋅14.______________15.132.093.7÷15.______________16.Write 6.08 as a fraction. Do not simplify.16.______________17.Write516 as a decimal.17.______________18.Round 79.7168 to the nearest hundredth.18.______________19.Write 23.1% as a decimal.19.______________20.Write 0.4 as a percent.20.______________

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T-3Chapter R Pretest Form BName:Date:1.List the factors of 18.1._______________2.Write the prime factorization of 120.2._______________3.Find the LCM of 10, 18, and 24.3._______________4.Write716 as an equivalent expression with a denominator of 64.4._______________5.Simplify 42 .965._______________Perform the indicated operations and simplify.6.29324⋅6._______________7.1253+7._______________8.4553÷8._______________9.42525−9._______________10.11101424+10.______________11.215 3 5⋅11.______________

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T-4Chapter R Pretest Form B (cont.)Name:Perform the indicated operations.12.450.63.07++12.______________13.2418.64−13.______________14.21.6 0.73⋅14.______________15.95.383.8÷15.______________16.Write 8.14 as a fraction. Do not simplify.16.______________17.Write716 as a decimal.17.______________18.Round 26.6289 to the nearest hundredth.18.______________19.Write 90.7% as a decimal.19.______________20.Write 0.9 as a percent.20.______________

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T-5Chapter R Test Form AName:Date:1.Fill in the blank: A fraction whose numerator is less thanits denominator is called a(n) _____________________.improper fractionorproper fraction1._______________2.List the factors of 20.2._______________3.Write the prime factorization of 252.3._______________4.Find the LCM of 6, 8, and 60.4._______________5.Write 35 as an equivalent expression with a denominator of 30.5._______________6.Simplify8 .286._______________7.Simplify 28 .357._______________Perform the indicated operations and simplify.8.2134+8._______________9.3759⋅9._______________10.214510÷10.______________11.3154−11.______________Perform the indicated operations.12.30.42.3++12.______________13.37.57.25−13.______________14.2.16 0.08⋅14.______________15.0.3680.16÷15.______________

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T-6Chapter R Test Form A (cont.)Name:16.Round 7.9374 to the nearest hundredth.16.______________17.Write 38 as a decimal.17.______________18.Write 79 as a repeating decimal. Then approximate the resultto the nearest thousandth.18.______________19.Write 2.35 as a fraction. Do not simplify.19.______________20.Write 15% as a decimal.20.______________21.Write 0.37 as a percent.21.______________22.15 out of 27 students scored higher than 80 on an algebratest. What percent of students scored higher than 80?Round the answer to the nearest whole percent.22.______________23.The graph shows students’ grades on a final exam for an algebra class.What percent of the students made a grade of A, B, or C?23.______________24.Find the area of a triangle with base of 2 centimeters andheight of 34 centimeters.24.______________25.Find the area of a rectangle with length120 2 feet andwidth 16 feet.25.______________

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T-7Chapter R Test Form BName:Date:1.Fill in the blank: A natural number greater than 1 whose onlyfactors are 1 and itself is called a _____________________.prime numberorcomposite number1._______________2.List the factors of 36.2._______________3.Write the prime factorization of 270.3._______________4.Find the LCM of 6, 8, and 12.4._______________5.Write 56 as an equivalent expression with a denominator of 72.5._______________6.Simplify5 .156._______________7.Simplify8 .527._______________Perform the indicated operations and simplify.8.2135+8._______________9.357 12⋅9._______________10.23335÷10.______________11.4253−11.______________Perform the indicated operations.12.360.213.5++12.______________13.75.28.95−13.______________14.2.16 3.4⋅14.______________15.2.340.13÷15.______________

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T-8Chapter R Test Form B (cont.)Name:16.Round 7.2985to the nearest hundredth.16.______________17.Write 45 as a decimal.17.______________18.Write 56 as a repeating decimal. Then approximate the resultto the nearest thousandth.18.______________19.Write 2.28 as a fraction. Do not simplify.19.______________20.Write 5.2% as a decimal.20.______________21.Write 0.016 as a percent.21.______________22.Jillian made 18 out of 24 free throws throughout the basketballseason. What percent of the free throws attempts did she make?Round the answer to the nearest whole percent.22.______________23.The graph shows how a student’s income is allocated.What fraction of the student’s income is spent on housing,transportation, and food?23.______________24.Find the area of a triangle with base of 6 inches andheight of 113inches.24.______________25.Find the area of a rectangle with width15 4 centimetersand length 12 centimeters.25.______________

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T-9Chapter R Test Form CName:Date:1.Fill in the blank: The product of a given number and anynatural number is called a _____________________.factorormultiple1._______________2.List the factors of 44.2._______________3.Write the prime factorization of 180.3._______________4.Find the LCM of 4, 8, and 28.4._______________5.Write 16 as an equivalent expression with a denominator of 18.5._______________6.Simplify 15 .756._______________7.Simplify 36 .637._______________Perform the indicated operations and simplify.8.2132+8._______________9.3259⋅9._______________10.2125÷10.______________11.4172−11.______________Perform the indicated operations.12.160.351.9++12.______________13.38.64.93−13.______________14.6.2 0.013⋅14.______________15.0.3910.17÷15.______________

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T-10Chapter R Test Form C (cont.)Name:16.Round 17.9583to the nearest hundredth.16.______________17.Write516 as a decimal.17.______________18.Write 49 as a repeating decimal. Then approximate the resultto the nearest thousandth.18.______________19.Write 1.56 as a fraction. Do not simplify.19.______________20.Write 3.2% as a decimal.20.______________21.Write 0.05 as a percent.21.______________22.Joel had 6 hits in 15 times at bat. What percent does thisrepresent? Round the answer to the nearest whole percent.22.______________23.The graph shows how funds are spent at a particular school.What fraction of the funds are spent on faculty and staff salaries?23.______________24.Find the area of a triangle with base of 16 centimeters andheight of 38 centimeters.24.______________25.Find the area of a rectangle with length 16 inches andwidth18 4 inches.25.______________

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T-11Chapter R Test Form DName:Date:1.Fill in the blank: Fractions that represent the same portionof a whole are called _____________________.simplified fractionsorequivalent fractions1._______________2.List the factors of 50.2._______________3.Write the prime factorization of 126.3._______________4.Find the LCM of 18, 12, and 36.4._______________5.Write 35 as an equivalent expression with a denominator of 20.5._______________6.Simplify 16 .286._______________7.Simplify 28 .607._______________Perform the indicated operations and simplify.8.1235+8._______________9.3 12413⋅9._______________10.214632÷10.______________11.3289−11.______________Perform the indicated operations.12.360.251.7++12.______________13.6.250.735−13.______________14.2.51 0.36⋅14.______________15.1.0580.23÷15.______________

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T-12Chapter R Test Form D (cont.)Name:16.Round 7.2913to the nearest hundredth.16.______________17.Write 78 as a decimal.17.______________18.Write 13 as a repeating decimal. Then approximate the resultto the nearest thousandth.18.______________19.Write 1.35 as a fraction. Do not simplify.19.______________20.Write 21% as a decimal.20.______________21.Write 0.37 as a percent.21.______________22.17 of 56 students drive more than 10 miles to school.What percent drive more than 10 miles to school?Round the answer to the nearest whole percent.22.______________23.The graph shows a breakdown of the costs for one semester of college.What fraction of the cost is for tuition and books?23.______________24.Find the area of a triangle with base of 16 centimeters andheight of 10 centimeters.24.______________25.Find the area of a rectangle with length18 3 inches andwidth 6 inches.25.______________

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T-13Chapter R Test Form EName:Date:1.To ____________ means to write as a product.(a)simplify(b)factor(c)multiply(d)reduce2.Give the prime factorization of 420.(a)2⋅3⋅5⋅7(b)2⋅2⋅3⋅5⋅7(c)3⋅5⋅5⋅11(d)3⋅5⋅113.Find the LCM of 10, 12, and 18.(a)90(b)30(c)180(d)3604.Which of the following is an expression equivalent to67?(a)1821(b)3649(c)3635(d)895.Which of the following fractions is the simplified form of4248?(a)78(b)67(c)56(d)2124Perform the indicated operations and simplify.6.17216+(a)818(b)49(c)732(d)15167.71163−(a)613(b)548(c)18(d)1128.263 19⋅(a)1257(b)619(c)419(d)56579.242655÷(a)6(b)175(c)23 5(d)617

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