Question

Which of the numbers 4, 5, & 6 is a solution of 3x + 2 ≥ 20

Answer 1

Substitute each number into the inequality to determine if it is a solution:

1. For x = 4:
3(4) + 2 = 12 + 2 = 14
14 is not greater than or equal to 20, so 4 is not a solution.

2. For x = 5:
3(5) + 2 = 15 + 2 = 17
17 is not greater than or equal to 20, so 5 is not a solution.

3. For x = 6:
3(6) + 2 = 18 + 2 = 20
20 is equal to 20, so 6 is a solution.

Therefore, the only number that is a solution of the inequality 3x + 2 ≥ 20 is 6.