AlgebraEasy–MediumInequality for a weight limit on a shelf
Algebra practice question
A shelf can hold at most 25 kilograms. Which inequality represents the total mass m, in kilograms, that may be placed on it?
- A. m ≤ 25Correct
- B. m < 25
- C. m ≥ 25
- D. m > 25
Answer: A. m ≤ 25
'At most 25' includes 25.
Why the other answers are wrong
- B. m < 25
- This excludes exactly 25.
- C. m ≥ 25
- This is a minimum.
- D. m > 25
- This is a minimum that excludes 25.
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