Answer:
0.25
Step-by-step explanation:
Given that a recently married couple are planning to have four children. They are equally likely to have a boy as well as a girl.
Let X be the no of boys the couples have. X has two outcomes with p = 0.5
X is binomial with n = no of trials = 4 and p =0.5
the probability that they will have three boys and one girl
=
Reqd prob = 0.25
Answer:
Jay did.
Step-by-step explanation:
Jay ate 2/3 of a pizza, while Darrell ate 2/4
2/3 is greater, like 6/9, but, 2/4 is only half, like 4.5/9
The elimination method is valid for the system of equation because the y term cancels.
<h3>How to solve a system of equation using elimination method?</h3>
The system of equation can be solved using elimination methods.
Therefore,
x - 2y = 3
3x + 2y = 17
Hence,
x + 3x = 4x
-2y + 2y = 0
3 + 17 = 20
Therefore,
4x = 20
The y term cancels. Therefore, we can solve for x and later solve for y.
learn more on equation here: brainly.com/question/17746153
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3n^2 + 3(3m^3 + 3n^3) =
= 3n^2 + 9m^3 + 9n^3
= 9m^3 + 3n^2 + 9n^3
90 is 36% of what number? 250.
