Answer: 37.5%
Explanation:
Percentage is defined as parts of an amount in 100 parts of a basis. This must be stated mathamatically for better understanding and for calculations. It is the ratio:
% = (parts / base) × 100.
In this case you need to express the amount of butter as a part in 100 parts of all purpose flour, which, using the above definition, is:
% butter = (0.75 pounds of butter / 2 pound of flour) × 100
% butter = 0.75 × 100 / 2 = 75 / 2 = 37.5
The answer is expressed as 37.5%.
34 is the original number.
This is because 34 times 2 is 68 and 68 plus 3 is 71.
https://www.khanacademy.org/math/statistics-probability/modeling-distributions-of-data/z-scores/a/z-scores-review
Clear Your concept
Answer:
BG = 8
EXPLANTAION :
we know that centroid of a triangle divides the median into ratio of 2 : 1 so,
BG : GF = 2 : 1
now, let's take BG as 2x and GF as x
and here, BG + GF = BF
So,
=》2x + x = 12
( because, BF = 12 )
=》3x = 12
=》x = 12 ÷ 3
=》x = 4
hence, x = 4
from here,
=》BG = 2x
=》BG = 2 × 4 = 8
We should first calculate the average number of checks he wrote
per day. To do that, divide 169 by 365 (the number of days in a year) and you get (rounded) 0.463. This will be λ in our Poisson distribution. Our formula is
. We want to evaluate this formula for X≥1, so first we must evaluate our case at k=0.
To find P(X≥1), we find 1-P(X<1). Since the author cannot write a negative number of checks, this means we are finding 1-P(X=0). Therefore we have 1-0.3706=0.6294.
There is a 63% chance that the author will write a check on any given day in the year.<em />