Answer:
The value of "x" must be greater than or equal to 2.4 in order for "one less than five times a number" to be at least 11.
Explanation:
Let's represent the unknown number as "x".
The phrase "one less than five times a number" can be translated as "5x - 1".
According to the given statement, "one less than five times a number is at least 11", we can write the following inequality:
5x - 1 ≥ 11
To solve this inequality, we first add 1 to both sides:
5x - 1 + 1 ≥ 11 + 1
Simplifying:
5x ≥ 12
Finally, we divide both sides by 5 to isolate the variable:
(5x)/5 ≥ 12/5
Simplifying:
x ≥ 2.4
Therefore, the value of "x" must be greater than or equal to 2.4 in order for "one less than five times a number" to be at least 11.