Question 29
InequalitiesFor what values of x is (x − 3)/4 + (x + 1)/8 ≥ 2 ?
- A.x ≥ 5
- B.x ≥ 6
- C.x ≥ 7
- D.x ≥ 8
Show the answer and explanation
Answer: C (x ≥ 7)
Explanation
Multiply by 8: 2(x − 3) + (x + 1) ≥ 16, so 3x − 5 ≥ 16 and x ≥ 7.
For what values of x is (x − 3)/4 + (x + 1)/8 ≥ 2 ?
Answer: C (x ≥ 7)
Multiply by 8: 2(x − 3) + (x + 1) ≥ 16, so 3x − 5 ≥ 16 and x ≥ 7.