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Unit 3 Review

Unit 3 Review. John can type at least 40 words per minute. Write and graph an inequality to model this situation. . W > 40. Which is a solution of the inequality? 5 < 5r a.) 4 b.) 1 c.) 10 . All of these numbers are solutions.

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Unit 3 Review

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  1. Unit 3 Review

  2. John can type at least 40 words per minute. Write and graph an inequality to model this situation.

  3. W > 40

  4. Which is a solution of the inequality? 5 < 5r a.) 4 b.) 1 c.) 10

  5. All of these numbers are solutions

  6. Solve the inequality and represent the solution set. 3(a – 7) > 26 a.) b.) c.) d.)

  7. a

  8. Solve the inequality. -6.5 < 3.5 + 4.4 + m

  9. -14.4 < m

  10. Suppose you had f dollars in your bank account. You spent $14 but have at least $33 left. How much money did you have initially? Write and solve an inequality that represents this situation.

  11. f -14 > 33; f > 47

  12. Solve the inequality and graph your solution. s > 4

  13. s < -20

  14. Solve the inequality. 14x – 5x + 11 > 7x – (15 – 4x)

  15. x < 13

  16. Write the inequality that matches this graph 2 ways

  17. X > -2 or -2 < x

  18. Identify the graph of the inequality from the given description: X is positive.

  19. Solve the inequality. 9 + 12r < 3 (r + 9)

  20. r < 2

  21. Label the JustificationsStep 1 2x – 9 < 7Step 2 2x – 9 + 9 < 7 +9Step 3 2x < 16 2 2Step 4 1x < 8Step 5 x < 8

  22. Label the JustificationsStep 1 2x – 9 < 7Step 2 2x – 9 + 9 < 7 +9Step 3 2x < 16 2 2Step 4 1x < 8Step 5 x < 8

  23. Which number is a solution of the inequality? 2x - 1 > 6 a.) 4 b.) 1 c.) -5

  24. a

  25. Solve the inequality. b + 6 -2(b – 10) > 0

  26. b < 26

  27. Solve the inequality and graph your solution. > 1

  28. h < -5

  29. Your class wants to collect at least 415 cans of food for the annual food drive. There were 127 cans donated the first week and 206 more the second week. Write an inequality that describes this situation. Let c represent the number of cans of food that must be collected by the end of the third week for your class to meet or surpass your goal. How many cans are needed to meet or surpass your goal?

  30. 127 + 206 + c > 415 c > 82

  31. Solve the inequality. -7x – 4 > 14

  32. x <

  33. Solve the inequality and graph your solution. -3n < -24

  34. n > 8

  35. Solve the inequality and graph your solution. < -3

  36. c > -6

  37. Solve the equation for the given variable. ax + by = c; x

  38. x = c – by a

  39. Solve the equation. 6x – 4 = 3x - 10

  40. x = -2

  41. What property does the following illustrate? (qz)7 = q(z7)

  42. Associative Property of Multiplication

  43. Solve the inequality. -6x – 4 > 2x - 20

  44. x < 2

  45. Which inequalities have -4 as a possible solution? -5 > 11 + 4y 12 > 60 – 6r > -4 22 > 5(2x + 3) -3x

  46. a, c, d

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