7
Answer: DSet 3: Linear Inequalities (Advanced)
Explanation
PROBLEM
A shipping box holds up to 50 lbs. Item A is 8 lbs, Item B is 5 lbs. Max Item A if 2 B added?
A shipping box holds up to 50 lbs. Item A is 8 lbs, Item B is 5 lbs. Max Item A if 2 B added?
A.
6
B.
7
C.
4
D.✓ Correct
5
Detailed Explanation
Choice D is the best answer. 8a + 10 <= 50. 8a <= 40, a <= 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.