9

Set 3: Linear Inequalities (Advanced)

Explanation

Answer: A

PROBLEM

A car must travel at least 300 miles. At 50 mph, minimum hours?

A car must travel at least 300 miles. At 50 mph, minimum hours?

A.

6

✓ Correct
B.

7

C.

5

D.

8

Detailed Explanation

Choice A is the best answer. 50t >= 300. t >= 6

Why others are wrong:
B: 7 is incorrect because it does not satisfy the equation.
C: 5 is incorrect because it does not satisfy the equation.
D: 8 is incorrect because it does not satisfy the equation.