8
Answer: DSet 2: Linear Inequalities (Advanced)
Explanation
PROBLEM
Solve: 5x - 10 >= 0 AND x + 4 <= 10. How many integer solutions?
Solve: 5x - 10 >= 0 AND x + 4 <= 10. How many integer solutions?
A.
6
B.
7
C.
4
D.✓ Correct
5
Detailed Explanation
Choice D is the best answer. x >= 2 AND x <= 6. Solutions: 2, 3, 4, 5, 6 = 5
Why others are wrong:
A: 6 is incorrect because it does not satisfy the equation.
B: 7 is incorrect because it does not satisfy the equation.
C: 4 is incorrect because it does not satisfy the equation.