Three time a certain number is not greater than 54.find the range of value of the number.
Let's call the certain number x.
According to the given condition, three times the number is not greater than 54. This can be written as:
3x ≤ 54
To find the range of values for x, we need to solve this inequality.
Divide both sides of the inequality by 3 to isolate x:
x ≤ 18
So, the range of values for the number x is anything less than or equal to 18. In interval notation, the range is (-∞, 18].