Set 2: Linear Inequalities (Advanced)

**Choice A is the best answer.** 30 + 0.1t <= 50. 0.1t <= 20, t <= 200

Explanation

Answer: A

PROBLEM

A phone plan costs $30 plus 0.10 per text. Maximum texts for $50 or less?

200

✓ Correct

150

180

250

Detailed Explanation

Choice A is the best answer. 30 + 0.1t <= 50. 0.1t <= 20, t <= 200

Why others are wrong:

B: 150 is incorrect because it does not satisfy the equation.

C: 180 is incorrect because it does not satisfy the equation.

D: 250 is incorrect because it does not satisfy the equation.