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

Test Bank for Algebra: A Combined Approach, 6th Edition offers practice exams, quiz answers, and insights to help you succeed.

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    Test Answers

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

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    T-1 Chapter R Pretest Form A Name: 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. Write 7 12 as an equivalent expression with a denominator of 60. 4. _______________ 5. Simplify 28 . 42 5. _______________ Perform the indicated operations and simplify. 6. 3 4 8 7 ⋅ 6. _______________ 7. 1 3 6 5 + 7. _______________ 8. 2 3 9 5 ÷ 8. _______________ 9. 3 1 5 3 − 9. _______________ 10. 1 3 4 6 3 8 + 10. ______________ 11. 3 8 9 4 ⋅ 11. ______________

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    T-2 Chapter R Pretest Form A (cont.) Name: Perform the indicated operations. 12. 27 0.4 2.07 + + 12. ______________ 13. 19 12.37 − 13. ______________ 14. 14.7 0.12 ⋅ 14. ______________ 15. 132.09 3.7 ÷ 15. ______________ 16. Write 6.08 as a fraction. Do not simplify. 16. ______________ 17. Write 5 16 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-3 Chapter R Pretest Form B Name: 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. Write 7 16 as an equivalent expression with a denominator of 64. 4. _______________ 5. Simplify 42 . 96 5. _______________ Perform the indicated operations and simplify. 6. 2 9 3 24 ⋅ 6. _______________ 7. 1 2 5 3 + 7. _______________ 8. 4 5 5 3 ÷ 8. _______________ 9. 4 2 5 25 − 9. _______________ 10. 1 1 10 14 2 4 + 10. ______________ 11. 2 15 3 5 ⋅ 11. ______________

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    T-4 Chapter R Pretest Form B (cont.) Name: Perform the indicated operations. 12. 45 0.6 3.07 + + 12. ______________ 13. 24 18.64 − 13. ______________ 14. 21.6 0.73 ⋅ 14. ______________ 15. 95.38 3.8 ÷ 15. ______________ 16. Write 8.14 as a fraction. Do not simplify. 16. ______________ 17. Write 7 16 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-5 Chapter R Test Form A Name: Date: 1. Fill in the blank: A fraction whose numerator is less than its denominator is called a(n) _____________________. improper fraction or proper fraction 1. _______________ 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 3 5 as an equivalent expression with a denominator of 30. 5. _______________ 6. Simplify 8 . 28 6. _______________ 7. Simplify 28 . 35 7. _______________ Perform the indicated operations and simplify. 8. 2 1 3 4 + 8. _______________ 9. 3 7 5 9 ⋅ 9. _______________ 10. 2 1 4 5 10 ÷ 10. ______________ 11. 3 1 5 4 − 11. ______________ Perform the indicated operations. 12. 3 0.4 2.3 + + 12. ______________ 13. 37.5 7.25 − 13. ______________ 14. 2.16 0.08 ⋅ 14. ______________ 15. 0.368 0.16 ÷ 15. ______________

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    T-6 Chapter R Test Form A (cont.) Name: 16. Round 7.9374 to the nearest hundredth. 16. ______________ 17. Write 3 8 as a decimal. 17. ______________ 18. Write 7 9 as a repeating decimal. Then approximate the result to 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 algebra test. 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 and height of 3 4 centimeters. 24. ______________ 25. Find the area of a rectangle with length 1 20 2 feet and width 16 feet. 25. ______________

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    T-7 Chapter R Test Form B Name: Date: 1. Fill in the blank: A natural number greater than 1 whose only factors are 1 and itself is called a _____________________. prime number or composite number 1. _______________ 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 5 6 as an equivalent expression with a denominator of 72. 5. _______________ 6. Simplify 5 . 15 6. _______________ 7. Simplify 8 . 52 7. _______________ Perform the indicated operations and simplify. 8. 2 1 3 5 + 8. _______________ 9. 3 5 7 12 ⋅ 9. _______________ 10. 2 3 3 3 5 ÷ 10. ______________ 11. 4 2 5 3 − 11. ______________ Perform the indicated operations. 12. 36 0.21 3.5 + + 12. ______________ 13. 75.2 8.95 − 13. ______________ 14. 2.16 3.4 ⋅ 14. ______________ 15. 2.34 0.13 ÷ 15. ______________

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    T-8 Chapter R Test Form B (cont.) Name: 16. Round 7.2985 to the nearest hundredth. 16. ______________ 17. Write 4 5 as a decimal. 17. ______________ 18. Write 5 6 as a repeating decimal. Then approximate the result to 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 basketball season. 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 and height of 11 3 inches. 24. ______________ 25. Find the area of a rectangle with width 1 5 4 centimeters and length 12 centimeters. 25. ______________

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    T-9 Chapter R Test Form C Name: Date: 1. Fill in the blank: The product of a given number and any natural number is called a _____________________. factor or multiple 1. _______________ 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 1 6 as an equivalent expression with a denominator of 18. 5. _______________ 6. Simplify 15 . 75 6. _______________ 7. Simplify 36 . 63 7. _______________ Perform the indicated operations and simplify. 8. 2 1 3 2 + 8. _______________ 9. 3 2 5 9 ⋅ 9. _______________ 10. 2 12 5 ÷ 10. ______________ 11. 4 1 7 2 − 11. ______________ Perform the indicated operations. 12. 16 0.35 1.9 + + 12. ______________ 13. 38.6 4.93 − 13. ______________ 14. 6.2 0.013 ⋅ 14. ______________ 15. 0.391 0.17 ÷ 15. ______________

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    T-10 Chapter R Test Form C (cont.) Name: 16. Round 17.9583 to the nearest hundredth. 16. ______________ 17. Write 5 16 as a decimal. 17. ______________ 18. Write 4 9 as a repeating decimal. Then approximate the result to 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 this represent? 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 and height of 3 8 centimeters. 24. ______________ 25. Find the area of a rectangle with length 16 inches and width 1 8 4 inches. 25. ______________

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    T-11 Chapter R Test Form D Name: Date: 1. Fill in the blank: Fractions that represent the same portion of a whole are called _____________________. simplified fractions or equivalent fractions 1. _______________ 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 3 5 as an equivalent expression with a denominator of 20. 5. _______________ 6. Simplify 16 . 28 6. _______________ 7. Simplify 28 . 60 7. _______________ Perform the indicated operations and simplify. 8. 1 2 3 5 + 8. _______________ 9. 3 12 4 13 ⋅ 9. _______________ 10. 2 1 4 6 3 2 ÷ 10. ______________ 11. 3 2 8 9 − 11. ______________ Perform the indicated operations. 12. 36 0.25 1.7 + + 12. ______________ 13. 6.25 0.735 − 13. ______________ 14. 2.51 0.36 ⋅ 14. ______________ 15. 1.058 0.23 ÷ 15. ______________

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    T-12 Chapter R Test Form D (cont.) Name: 16. Round 7.2913 to the nearest hundredth. 16. ______________ 17. Write 7 8 as a decimal. 17. ______________ 18. Write 1 3 as a repeating decimal. Then approximate the result to 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 and height of 10 centimeters. 24. ______________ 25. Find the area of a rectangle with length 1 8 3 inches and width 6 inches. 25. ______________

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    T-13 Chapter R Test Form E Name: Date: 1. To ____________ means to write as a product. (a) simplify (b) factor (c) multiply (d) reduce 2. 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 ⋅ 11 3. Find the LCM of 10, 12, and 18. (a) 90 (b) 30 (c) 180 (d) 360 4. Which of the following is an expression equivalent to 6 7 ? (a) 18 21 (b) 36 49 (c) 36 35 (d) 8 9 5. Which of the following fractions is the simplified form of 42 48 ? (a) 7 8 (b) 6 7 (c) 5 6 (d) 21 24 Perform the indicated operations and simplify. 6. 1 7 2 16 + (a) 8 18 (b) 4 9 (c) 7 32 (d) 15 16 7. 7 1 16 3 − (a) 6 13 (b) 5 48 (c) 1 8 (d) 1 12 8. 2 6 3 19 ⋅ (a) 12 57 (b) 6 19 (c) 4 19 (d) 56 57 9. 2 4 2 6 5 5 ÷ (a) 6 (b) 17 5 (c) 2 3 5 (d) 6 17

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