AlgebraEasyInequality for a speed limit
Algebra practice question
The speed limit on a road is 50 kilometres per hour. Which inequality represents the speeds s, in kilometres per hour, that are within the limit?
- A. s ≤ 50Correct
- B. s ≥ 50
- C. s < 50
- D. s > 50
Answer: A. s ≤ 50
Driving at exactly 50 is within the limit.
Why the other answers are wrong
- B. s ≥ 50
- This describes speeding.
- C. s < 50
- This excludes 50 itself.
- D. s > 50
- This describes speeding and excludes 50.
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