You roll a blue number cube and a green number cube. find each probability.

P(blue 1 green 1 or 2)

5x^2=80

To find the probability of rolling a 1 on the blue number cube and a 1 or a 2 on the green number cube, we need to determine the total number of possible outcomes and the number of favorable outcomes.

Step 1: Determine the total number of possible outcomes
Since we are rolling a blue number cube and a green number cube, each cube has 6 possible outcomes (numbers 1 to 6). Therefore, the total number of possible outcomes is 6 x 6 = 36.

Step 2: Determine the number of favorable outcomes
To find the number of favorable outcomes where we roll a 1 on the blue number cube and a 1 or a 2 on the green number cube, we need to consider the following scenarios:
1. Rolling a 1 on the blue number cube and a 1 on the green number cube.
2. Rolling a 1 on the blue number cube and a 2 on the green number cube.

Therefore, the number of favorable outcomes is 2.

Step 3: Calculate the probability
The probability is calculated by dividing the number of favorable outcomes by the total number of possible outcomes.

Probability = Number of favorable outcomes / Total number of possible outcomes
Probability = 2 / 36

Simplifying, we get:
Probability = 1 / 18

Therefore, the probability of rolling a 1 on the blue number cube and a 1 or a 2 on the green number cube is 1/18.