You roled a fair 6 sised die what is p(roll a 2

1/6

Step-by-step explanation: p(roll a 2) means the probability or likelihood of rolling a 2. So to find the probability of rolling a 2, let's use our ratio for the probability of an event which is shown below.

Number of favorable outcomes/total number of outcomes

Since only one side of a number cube has a 2 on it, the number of favorable outcomes for rolling a 2 is 1 and since there are six sides to a number cube and it's equally likely that the cube will land on any of these sides, the total number of outcomes is 6. So the probability of rolling a 2 is 1/6.

I have also shown my answer in the image attached.

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so: