Which of the following is the solution set of the problem?
2 answers:
Answer: b
Step-by-step explanation: got it right
2 less than a number n is (n - 2 ) and 3 times this is 3(n - 2 ), thus
3(n - 2) ≥ 5n ( greater than or equal to 5 times n )
3n - 6 ≤ 5n ( subtract 3n from both sides )
- 6 ≥ 2n ( divide both sides by 2 )
- 3 ≥ n or n ≤ - 3
Since n is less than or equal to - 3 use bracket ]
n ∈ ( - ∞, - 3 ] ← solution set
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