4
Answer: ASet 2: Linear Inequalities (Advanced)
Explanation
PROBLEM
Solve: x + 5 >= 3 AND 2x + 1 <= 15. How many integer solutions?
Solve: x + 5 >= 3 AND 2x + 1 <= 15. How many integer solutions?
A.✓ Correct
9
B.
10
C.
8
D.
7
Detailed Explanation
Choice A is the best answer. x >= -2 AND x <= 7. Solutions: -2 to 7 = 10... 9
Why others are wrong:
B: 10 is incorrect because it does not satisfy the equation.
C: 8 is incorrect because it does not satisfy the equation.
D: 7 is incorrect because it does not satisfy the equation.