Chapter 1 Answers - Pearson

1 Martin-Gay Prealgebra Edition 5 381 Chapter 1 1. words 2. standard form 3. expanded form 4. period 5. place value 6. whole 7. ten 8. thousand 9. ten thousand 10. four hundred three 11. twenty-three thousand, eight hundred thirty-one 12. sixteen million, three hundred ninety thousand, five hundred sixty-nine 13. thirteen thousand, one hundred twenty-six 14. one thousand, eight hundred eighty-three 15. 9816 16. 3,255,012 17. 10,000 + 3000 + 200 + 9 18. 3000 + 900 + 20 + 1 19. 10,000,000 + 2,000,000 + 300,000 + 9000 + 100 + 40 + 1 20. women 21. 135 22. 176 23. 9999 24. 9876 25. no, two hundred six Answers 1. addend, sum 2. perimeter 3. minuend, subtrahend, difference 4. commutative 5. associative 6. 27 7. 6203 8. 798 9. 29 10. 1109 11. 12,899 12. 42 inches 13. 34 yards 14. 2186 15. 96 16. 56,703,038 17. $389 18. car payment 19. $515 20. $173 21. 89, 184 minuend, 95 subtrahend, 89 difference 22.

2 5 1. exact, estimate 2. Rounding 3. 400 4. 1000 5. 70 6. 130,000 7. 4390; 4400; 4000 8. 123,490; 123,500; 123,000 9. 28,950; 29,000; 29,000 10. 148,820; 148,800; 149,000 11. $250,000 12. 180 13. 190 14. 1200 15. 0 16. 1860 miles 17. $1180 18. Answers will vary 19a. 2650 b. 2749 20. 340 feet Copyright 2008 Pearson Education, Inc., publishing as Pearson Prentice Hall Martin-Gay Prealgebra Edition 5 382 Chapter 1 1. product, factor 2. commutative 3. associative 4. area 5. distributive 6. 17 7. 23 8. 0 9. 0 10. 3 5 + 3 8 11. 12 9 + 12 4 12. 81 13. 3856 14. 3612 15. 1,157,958 16. 21 square inches 17. 875 square feet 18. 1394 19. 1242 20. 240 calories 21. $3024 22. 11,640 square feet 23. 6400 24. 2 + 2 + 2 + 2 + 2 Answers 1. undefined 2. quotient, dividend, divisor 3. 6 4. 9 5. 9 6. 0 7. 42 8. 1 9. 0 10. undefined 11. 28 12. 234 13.

3 75 14. 14 15. 18 R 2 16. 321 17. 62 R 8 18. 115 R 5 19. 583 R 8 20. 8 21. $185,000 22. yes, 3 yards left over 23. 24 24. 8 feet 25. Answers will vary (cont d) 1. base, exponent 2. 63 3. 412 4. 33532 5. 8 6. 243 7. 12 8. 54 9. 36 10. 192 11. 14 12. 16 13. 11 14. 6 15. 12 16. 28 17. 104 18. 61 19. 3 20. 2 21. 10 22. undefined 23. 100 square feet 24. 256 square feet 25. 70 inches Copyright 2008 Pearson Education, Inc., publishing as Pearson Prentice Hall Martin-Gay Prealgebra Edition 5 383 Chapter 1 1. variable 2. equation, expression 3. variable 4. solution 5. 14 6. 47 7. 38 8. 1 9. 5 10. 121 11. 41 12. 126 13. 81 14. yes 15. 4 + x 16. 8 x 17. x 7 18. 6x 19. x 5 20. no, x 7 and 7 x are not the same Answers Test A 1. eight hundred seventy-six thousand, one hundred twenty-four 2. 72,008 3. 226 4. 105 5. 9300 6. 133 R 26 7. 432 8. 15 9.

4 0 10. undefined 11. 1 12. 22 13. 80 14. 35 15. 1 16. 59 17. 160,000 18. 11,800 19. 4 20. 59 21. 84 22. 17 23. $18 24. $35 25. $196 26. $907 27. area = 64 square feet, perimeter = 32 feet 28. area = 96 square feet, permenter = 40 feet 29. 12 30. 2 31. 10 + x 32. 6x 33. yes (cont d) Test B 1. b 2. a 3. d 4. b 5. d 6. a 7. d 8. b 9. a 10. c 11. c 12. a 13. b 14. d 15. c 16. b 17. a 18. b 19. b 20. c 21. a 22. b 23. a 24. c 25. d 26. b 27. c 28. a 29. d 30. c 21. b 32. a 33. b Copyright 2008 Pearson Education, Inc., publishing as Pearson Prentice Hall Martin-Gay Prealgebra edition 5 384 Chapter 2 1. integers 2. opposites 3. signed numbers 4. absolute value 5. 8 6. 2 7. 8. > 9. > 10. < 11. 4 12. 1 13. 0 14. 8 15. 6 16. 0 17. 18 18. 3 19. 6 20. < 21. > 22. Day 1 23. 4, (2), 1, ( 3), | 4| 24. False 25. Answers will vary Answers 1.

5 0 2. 1 3. 3 4. 1 5. 4 6. 14 7. 3 8. 17 9. 2 10. 88 11. 4 12. 3 13. 0 14. 5 15. 3 16. 22 feet 17. 3500 18. $9500 19. Answers will vary 20. Answers will vary 1. 3 2. 0 3. 4 4. 11 5. 6 6. 10 7. 3 8. 1 9. 3 10. 52 11. 9 12. 2 13. 2 14. 12 15. 3 16. 19 17. 2 18. 16 19. 5 20. 7 21. 8 points 22. 120 23. Answers will vary 24. Answers will vary Copyright 2008 Pearson Education, Inc., publishing as Pearson Prentice Hall Martin-Gay Prealgebra edition 5 385 Chapter 2 1. negative 2. positive 3. negative 4. positive 5. 0 6. undefined 7. 18 8. 40 9. 0 10. 60 11. 60 12. 0 13. 16 14. 16 15. 4 16. 16 17. 6 18. undefined 19. 8 20. 1 21. 48 22. 2 23. 12 yards 24. negative 25. positive 26. 1 27. 1 Answers 1. multiplication 2. division 3. addition 4. subtraction 5. 1 6. 5 7. 4 8. 18 9. 12 10. 64 11. 1 12. 8 13. 56 14.

6 2 15. 36 16. 75 17. 2 18. 15 19. 8 20. yes (cont d) 1. expression, equation 2. addition 3. multiplication 4. equivalent 5. expression, equation 6. solution 7. no 8. yes 9. 14 10. 14 11. 5 12. 4 13. 7 14. 4 15. 8 16. 27 17. 8 18. 0 19. 200 20. 8 21. Answers will vary Copyright 2008 Pearson Education, Inc., publishing as Pearson Prentice Hall Martin-Gay Prealgebra edition 5 386 Chapter 2 Test A 1. 1 2. 7 3. 10 4. 4 5. 6 6. 1 7. 60 8. 5 9. 29 10. 11 11. 6 12. 1 13. 8 14. 7 15. 12 16. 256 17. 2 18. 10 19. 2 20. 5 21. 12 22. 0 23. 1 24. $445 25. 67 feet 26. 43,973 feet 17. 2 28. 5 29. 32 30. 2 31. 2 Answers Test B 1. b 2. c 3. a 4. b 5. d 6. c 7. a 8. b 9. a 10. a 11. d 12. b 13. d 14. a 15. d 16. b 17. c 18. b 19. c 20. a 21. d 22. a 23. c 24. d 25. b 26. a 27. c 28. a 29. d 30. c 31. b 32. a 33. d (cont d) Copyright 2008 Pearson Education, Inc.

7 , publishing as Pearson Prentice Hall Martin-Gay Prealgebra edition 5 387 Chapter 3 1. combine like terms 2. coefficients variable 3. coefficient 4. unlike, like 5. 10x 6. 6a 7. y + 3 8. 12x 9. 6x 10. 56b 11. 3x + 12 12. 20x + 15 13. 2x 2 14. 8x 18 15. 8x 13 16. 27x 9 17. 12b + 8 18. 2xy 35 19. 19x + 26 feet 20. 50x square inches 21. 700 square feet 22. 110 feet 23. 86x square feet Answers 1. simplify 2. 3 3. 10 4. 12 5. 5 6. 2 7. 3 8. 3 9. 4 10. 8 11. 20 12. 4 13. 0 14. 9 15. x + 9 16. x 17 17. 3x 18. x8 19. 8x + 25 20. No, 3 1. 10 2. 2 3. 0 4. 15 5. 3 6. 1 7. 3 8. 25 9. 8 10. 3 11. 8 12. 13 13. 10 14. 8 15. 0 16. 9 17. 8 12 = 20 18. 12( 3) = 36 19. 4(8 5) = 12 20. 11 8 = 3 21. 2 Copyright 2008 Pearson Education, Inc., publishing as Pearson Prentice Hall Martin-Gay Prealgebra edition 5 388 Chapter 3 1.

8 X 4 = 8 2. 47 =x 3. 8 x = 25 4. 4x = 220 5. 2x 8 = 24 6. 4(x 3) = 36 7. 3 8. 4 9. 24 10. 9 11. 7 12. 10 13. 1a 14. 26 students 15. Ruth 60 mph, Frank 65 mph 16. $13 for CD s, $20 for DVD s 17. 174 cars 18. 60 coats, 12 sweaters 19. $18 Answers Test A 1. 4x + 16 2. 8x + 12 3. 2x 6 4. 8x + 8 5. 20x 15 6. 1 7. 9 8. 1 9. 7 10. 2 11. 9 12. 12 13. 7 14. 3 15. 6 + x 16. 7 4x 17. 3x + 9 = 7 18. 4x + 6 = 25 19. 8 20. 16 males, 21 females (cont d) Test B 1. b 2. d 3. a 4. c 5. a 6. b 7. a 8. d 9. a 10. c 11. b 12. c 13. a 14. d 15. b 16. a 17. c 18. d 19. b 20. b Copyright 2008 Pearson Education, Inc., publishing as Pearson Prentice Hall 389 Chapter 4 1. fraction, numerator, denominator 2. proper, improper 3. mixed number 4. numerator: 18 denominator: 29 5. 75 6. 87 7. 8. 9. 519271 10. 2912 11. 12.

9 13. 1 14. 1 15. 0 16. undefined 17. 726 18. 1156 19. 338 20. 723 21. 1035 22. 10411 23. 1 24. 53,53 25. Answers 1. 323 2. 2232 3. 2 5 7 4. 7323 5. 92 6. 31 7. 72 8. x21 9. xy97 10. yes 11. no 12. no 13. no 14. yes 15. 31 16. 258 17. 4328 18. 169 19. 43 20. yes 1. multiplication 2. reciprocals 3. 356 4. 24x 5. 103 6. 0 7. x21 8. 91 9. 81 10. 4 11. 54x 12. 2532x 13. 95 14. 274 15. 161 16. 24abc 17. 31 18. 321 ,154 19. 40 20. 25 21. 300 calories 22. $5250 23. 1 ,3625, yes 24. $32 01 01 Copyright 2008 Pearson Education, Inc., publishing as Pearson Prentice Hall 390 Chapter 4 1. unlike, like 2. least common denominator 3. equivalent 4. 53 5. 611 6. x45 7. 151 8. x2 9. 51 10. 61 11. 314+x 12. 54 13. 1 14. 43 inch 15. 76 inch 16. 32 mile 17. 15 18. 12 19. 30 20. 2016 21. 2816 22.

10 248x 23. 81 24. 545 Answers 1. 2017 2. 43 3. 2119y 4. 312 5. 618 b 6. 81 7. 2013 8. 6528 9. 2117 10. 8116 x 11. 51 12. > 13. < 14. 125 15. 1211 16. 83 17. 611 18. 1032 cm 19. 21 in 20. 3517, no (cont d) 1. 3 21 2. 41 2 3. 311 4. 211 5. 76x 6. 2522 7. 2 8. x32 9. 32 10. 21 11. 22556 12. 365 13. 361 14. 412 15. 91 16. 1211 17. 3625 18. 245 19. 95 20. 31 Copyright 2008 Pearson Education, Inc., publishing as Pearson Prentice Hall 391 Chapter 4 1. mixed number 2. whole number, fraction 3. improper 4. 5. 107 6. 767 7. 26 8. 9920 9. 1611 10. 21177 11. 21214 12. 2153 13. 432 14. 52 15. 8324 16. 766 17. 439 18. 871 19. 35276 20. > Answers 1. 2019 2. 152 3. 3519 4. 65 5. 21 6. 326 7. 21 8. 5 9. 2110 10. 7 11. 32 12. 5 13. 9 14. 185 15. 643 x 16. 1058y+ 17. 359x+ 18. 107x 19. 213 inch (cont d) Test A 1.