Question

Solve the following compound inequality. 5x+7 is less than or equal to -3 or 3x-4 is greater than or equal to 11

A. x ≤ -15 or x ≥ 12

B. -2 ≤ x ≤ 5

C. x ≥ 5

D. x ≤ -2 OR x ≥ 5

Answer 1

C

Explanation:

5x + 7 is less than or equal to -3

5x + 7 = -3

5x = -10

x = -10/5

x = -5

3x - 4 is greater than or equal to 11

3x - 4 = 11

3x = 15

x = 15/3

x = 5