3. 5x5x5. i am not sure if i am correct but i am assuming it is that.
N = number of seeds planted
P = probability of germination
K = number that germinated
Using probability calculation:
p(x = k) = (n k) x 0.90^K x 0.10^n-k
p(10) = (12 10) x 0.90^10 x 0.10^2
P(10) = 0.2310
<span>In a Metro there are:
20 rows of seats
18 seats in a row
and $5 per ticket
Using commutative property of Multiplication:
Therefore.
=> (20 x 18) x 5 = 5 x (18 x 20)
=> 360 x 5 = 5 x 360
=> 1800 = 1800
Therefore, they have $1800 income.</span>
Answer
Find out how much money did she start with.
To proof
let us assume that the money she had be x.
As given
woman spent two thirds of her money
![Money\ spent = \frac{2x}{3}](https://tex.z-dn.net/?f=Money%5C%20spent%20%3D%20%5Cfrac%7B2x%7D%7B3%7D)
Money she had after spent two thirds of her money = Total money - money spent
![= x - \frac{2x}{3}](https://tex.z-dn.net/?f=%3D%20x%20-%20%5Cfrac%7B2x%7D%7B3%7D)
![= \frac{1x}{3}](https://tex.z-dn.net/?f=%3D%20%5Cfrac%7B1x%7D%7B3%7D)
As given she lost two thirds the remainder
![=\frac{2}{3}\times ( money\ she\ had\ after\ spending\ two\ thirds\ of\ her\ money)](https://tex.z-dn.net/?f=%3D%5Cfrac%7B2%7D%7B3%7D%5Ctimes%20%28%20money%5C%20she%5C%20had%5C%20after%5C%20spending%5C%20two%5C%20thirds%5C%20of%5C%20her%5C%20money%29)
![= \frac{2}{3} \times\frac{1x}{3}](https://tex.z-dn.net/?f=%3D%20%5Cfrac%7B2%7D%7B3%7D%20%5Ctimes%5Cfrac%7B1x%7D%7B3%7D)
we get
![=\frac{2x}{9}](https://tex.z-dn.net/?f=%3D%5Cfrac%7B2x%7D%7B9%7D)
Money she had after lost two thirds the remainder = Money she had after spent two thirds of her money - she lost two thirds the remainder
![= \frac{1x}{3} - \frac{2x}{9}](https://tex.z-dn.net/?f=%3D%20%5Cfrac%7B1x%7D%7B3%7D%20-%20%5Cfrac%7B2x%7D%7B9%7D)
![= \frac{1x}{9}](https://tex.z-dn.net/?f=%3D%20%5Cfrac%7B1x%7D%7B9%7D)
As given
she had $4 left
thus
![\frac{1x}{9} = 4](https://tex.z-dn.net/?f=%5Cfrac%7B1x%7D%7B9%7D%20%3D%204)
x = $36
she start with $36.
Hence proved