7

Set 3: Linear Inequalities (Advanced)

Explanation

Answer: D

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.

5

✓ Correct

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.