Answer:
432 million.
Step-by-step explanation:
We are given that,
Number of mobile users today = 540 million.
Increase in the number of users each year = 20%.
Let, the number of users last year = x million.
So, the number of users increase from the last year are '20% of 540 million' i.e.
= 108 million.
Thus, the number of users in the last year = Number of user's today - Number of users increased.
i.e. number of users in the last year = 540 - 108 = 432 million.
Hence, there were 432 million mobile users last year.
Answer:
0, 3, 8, 15, 24, 35
Step-by-step explanation:
the logic is "Adding odd numbers in a series to the given number series". Thus, the answer is "35"
Answer:
Let's denote students in D = in the drama club , S = in a sports team
P(D) = 85/330
P(S) = 200/330
P(D and S) = 60/300
P(D or S) = P(D) + P(S) - P(D and S) = 85/330 + 200/330 - 60/330 = 15/22
P(neither D nor S) = 1- 15/22 = 7/22
Step-by-step explanation:
corrected question:A jar contains two blue and five green marbles. A marble is drawn at random and then replaced. A second marble drawn at random. For each of the following, find the probability that: a) both marbles are blue b) both marbles are the same color c)the marbles are different in color
Answer:
Step-by-step explanation:
<u><em>The probability was done with replacement.</em></u>
Probaility of an event happening
number of blue marbles= 2
number of green marbles=5
total number of marbles=7
(a) probability that both marbles are blue = pr(first is blue)*pr(second is blue)


(b)probability that both marbles are the same color =pr(first is blue)*pr(second is blue) + Pr(first is green)*Pr(second is green)



(c)Probability that the marbles are different in colors=pr(first is blue)*pr(second is green) + Pr(first is green)*Pr(second is blue)


