HELP ! PROBABILITY !
Easy

The probability is zero

Step-by-step explanation:

Probability

There are 3 white counters and 2 black counters in a bag. One of them is chosen at random.

It's required to calculate the probability that a green counter has been chosen.

The probability of an outcome is defined as the frequency of the number of times the outcome occurs relative to the number of times that it could have occurred.

The equation to calculate the probability is:

Where f is the number of favorable cases and n is the total cases.

Since there are no green counters in the bag, it's impossible to choose a green counter, thus f=0 out of n=5 total cases:

P = 0

We have put the cross in the mark 0 on the probability scale below

answer: bea's uncle is 25 years old.

step-by-step explanation:

given the equation , we can say that the variable "x" represents the age of bea's uncle. then to find his age, we need to solve for "x":

we must add 15 to both sides of the equation:

now we need to divide both sides of the equation by 3:

therefore, we can conclude that bea's uncle is 25 years old.