146 Chapter 2 Linear Equations and Inequalities 61. 62. 1 2 2 63. 64. Expanding Your Skills For Exercises 65–68, solve the equation. 65. 66. 1 25 h 3 7 10 b 3 2 b 0.8 67. 68. 0.78 2 50.8 2 h 0.5 2 3 4 1 c 0.11 0.231c 52 1 2 a 0.4 0.7 3 5 a 15 2 2 5 z 1 4 3 10 z 1 8 v 2 3 1 6 v 3 4 5 9 3d 4 6 1 d 1 8 1 10 2k 5 4 2 k 2 3 Problem Recognition Exercises Equations and Expressions For Exercises 1–32, identify each exercise as an expression or an equation. Then simplify the expression or solve the equation. 1. 2. 3. x 2 Expression; 20p – 30 7 314h 22 15h 82 8 12h 32 7y 312y 52 7 110 10y2 318z 12 10 615 3z2 511 x2 312x 32 5 Expression; 6z – 23 6c 31c 12 10 9 512y 32 7 0.512a 32 0.1 0.416 2a2 1 214t 82 3 4 Equation; 20 2z 7 21z 132 7 316 12t2 2x 1 6x 21x 12 212x 32 2 4 3x 2 6 Equation; 23 12 4b 8 b 3b 213b 42 k 41 2 k 2120 k2 3 1 316c 32 4 316y 32 0 w 4 6 3w 1 2 1 Expression; 0 1012k 12 414 5k2 25 3 234a 51a 124 9 433 21q 324 4 238 16 x24 21x 12 4 x Equation; 10 Equation; 1 20 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. 1 532 31w 224 51w 42 31. 32. 1 2 1 5ax 1 2b 9 10 x 1 6 y y 1 314y 12 31x 62 71x 22 411 x2 1 212c 42 3 x 1 2 1 8 x 5 4 3 8 t 5 8 1 2 t 1 8 5 9 w 11 12 23 36 0.0712v 42 0.11v 42 y 4 2b 23 6b 5 10p 9 2p 3 8p 18 2 Expression; –4b 18 Equation; –14 Equation; –3 Expression; 5 8 x 7 4 Equation; 1 3 Equation; 4 3 Equation; 7 9 Equation; 13 10 Equation; 1 2 Expression; 26t 18 Expression; 2a 13 Expression; 8q 3 Expression; – 1 Expression; –x – 9 Equation; –6 Equation; no solution Equation; no solution Equation; all real numbers Equation; all real numbers Equation; 0 Equation; 1 2 Equation; 5 8 Equation; –8 Expression; 1 6 y 1 3 Expression; 7 10 x 2 5 Writing Translating Expression Geometry Scientific Calculator Video
miller_introductory_algebra_3e_ch1_3
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