(3, -1) Looking at the two equations I see that you have a+ y in equation one and − y in equation two. By adding the two equations together I will eliminate the y variable and then you can solve for x.
Solution: The given random experiment follows Binomial distribution with 
Let
be the number of adults who use their smartphones in meetings or classes.
Therefore, we have to find:

We know the binomial model is:






Therefore, the probability that fewer than 3 of them is 0.1111
Answer:
Step-by-step explanation:
1 kilogram = 1000 grams
since we need to know 25 kilograms you can do
25 x 1000
giving us 25,000
C because you have to multiply the four measures together.