Pre-Algebra Chapter 7 Review

1) State an inequality for each graph. Chapter 7 Review 1) State an inequality for each graph. -3 -2 -1 1 2 3 -3 -2 -1 1 2 3

1) State an inequality for each graph. Answer Chapter 7 Review 1) State an inequality for each graph. x ≤ 1 -3 -2 -1 1 2 3 x > -2 -3 -2 -1 1 2 3

2) Solve and graph. 19 – 8x ≤ -5 8x – 7 ≥ 2x -1 Chapter 7 Review 2) Solve and graph. 19 – 8x ≤ -5 8x – 7 ≥ 2x -1

2) Solve and graph. 19 – 8x ≤ -5 8x – 7 ≥ 2x -1 Answer Chapter 7 Review 2) Solve and graph. 19 – 8x ≤ -5 8x – 7 ≥ 2x -1 x ≥ 3 1 2 3 4 5 6 x ≥ 1 1 2 3 4 5 6

3) Solve. -12 + 4n = 6(n – 2) 2y – 3 = 2(y + 5) + y Chapter 7 Review 3) Solve. -12 + 4n = 6(n – 2) 2y – 3 = 2(y + 5) + y

3) Solve. -12 + 4n = 6(n – 2) 2y – 3 = 2(y + 5) + y Answer Chapter 7 Review 3) Solve. -12 + 4n = 6(n – 2) 2y – 3 = 2(y + 5) + y n = 0 y = -13

Chapter 7 Review 4) Solve. Five more than twice a number is the same as when one is subtracted from the number. What is the number?

Answer Chapter 7 Review 4) Solve. Five more than twice a number is the same as when one is subtracted from the number. What is the number? 5 + 2n = n - 1 n = -6

Chapter 7 Review 5) Solve. Three more than one fourth of a number is one more than half the number. What is the number?

Answer Chapter 7 Review 5) Solve. Three more than one fourth of a number is one more than half the number. What is the number? 3 + ¼ n = 1 + ½ n n = 8

Write an inequality for each. Graph. Chapter 7 Review Write an inequality for each. Graph. The number of questions, q, on the test is not more than 20. The area, a, of the square is at least 9.

Answer Write an inequality for each. Graph. Chapter 7 Review Write an inequality for each. Graph. The number of questions, q, on the test is not more than 20. The area, a, of the square is at least 9. q ≤ 20 16 17 18 19 20 21 22 a ≥ 9 8 9 10 11 12 13 14