Final answer:
The probability of drawing a number divisible by 9 from a bag of chips numbered 1-30 is 1/10.
Step-by-step explanation:
To find the probability that a number drawn from a bag containing chips numbered 1-30 is divisible by 9, we need to determine the number of chips that are divisible by 9 and divide it by the total number of chips.
Chips divisible by 9 are: 9, 18, 27. So, there are 3 chips out of 30 that are divisible by 9.
Therefore, the probability is 3/30, or 1/10.