Question

Identify the inequality that represents the following problem. One less than twice a number is no less than five. What is the solution set?

1 - 2n ≥ 5
2n - 1 ≥ 5
2n - 1 > 5
1 - 2n > 5

Answer 1

2n-1>5

Explanation:

Answer 2

Answer:
`2n-1\geq5`

Explanation:

1. You must read carefully the information given in the problem: "One less than twice a number" indicates that you must write a number
`n` multiplied by 2 and subtract 1 from this term, as following:

`2n-1`

2. "is not less than five" indicates that the result must be equal or greater than 5. Then, you obtain the following expression:

`2n-1\geq5`