Shapes of Algebra 4 4
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1) The document is an agenda for a math class that lists homework problems and in-class problems to work on systems of linear equations. 2) The homework involves solving 16 systems of linear equations by combination or elimination. 3) In class, students will complete and discuss 12 word problems that can be modeled with systems of linear equations.
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Shapes of Algebra 4 4
- 1. Agenda Thursday, Feb. 25 Homework 16 Shapes p. 60 # 21 - 26, 48, 49, 64 Correct homework. Solving Systems of Linear Equations by Combination or Elimination Problem 4.3
- 2. 8. y = -4x + 12 1/2 y = 1/4x + 4 { (2, 4 1/2)
- 3. { 9. h = 6g - 4 h - -2g + 28 (4, 20)
- 4. { 10. a = 2/5b - 3 a = 2b - 18 (3/4, 9 3/8)
- 5. { 11. y = x - 2 2x + 2y = 4 (2, 0)
- 6. { 12. c = 3d - 27 4d + 10c + 120 (7 7/17, 11 8/17)
- 7. { 13. 3x - 6y = 30 y = -6x + 34 (6, -2)
- 8. { 17. l = 2w + 5 l + w = 34 4 cm by 13 cm
- 9. { 18. a = 28 + 18.25w a = 161 - 15w a = amount in account w = number of weeks 4 weeks
- 10. { 21. y = 0.8x + 7.2 20x + 32y = 48 (-4, 4)
- 11. { 26. y = 1/2x + 4 y = -4x - 5 (-2, 3)
- 12. { 31. n + d = 28 0.05n + 0.10d = 2.05 15 nickels & 13 dimes
- 16. { 12. c = 3d - 27 4d + 10c + 120 (7 7/17, 11 8/17)
- 24. Attachments