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)

19. Complete then discuss.

20. Complete then discuss.

21. Complete then discuss.

24. Attachments