I think it means like explain what are variable is. Only if your finding a variable: explain how you got the answer to that variable. Hope I helped!
Answer:
a. annual income = $31,200
b. Social Security tax = $1,934.40
c. Medicare = $452.40
Step-by-step explanation:
40 hours in a week
52 weeks in a year
Tom makes $15 / hour
In a year, the
a. annual income = 15*40*52 = 31200
b. Social Security tax = 31200 * 0.062 = 1934.40
c. Medicare = 31200 * 0.0145 = 452.40
Answer:
Es 2.6
Step-by-step explanation:
This question is incomplete, the complete question is;
X and Y are independent Gaussian (Normal) random Variables. X has mean 13.9 and variance 5.2; Y has mean 6.9 and variance 3.8. . (a) Calculate P( W> 10)
Answer:
P( W> 10) is 0.1587
Step-by-step explanation:
Given that;
X ⇒ N( 13.9, 5.2 )
Y ⇒ N( 6.9, 3.8 )
W = X - Y
Therefore
E(W) = E(X) - E(Y)
= 13.9 - 6.9 = 7
Var(W) = Var(X) + Var(Y) -2COV(X.Y)
[ COV(X,Y) = 0 because they are independent]
Var(W) = 5.2 + 3.8 + 0
= 9
Therefore
W ⇒ N( 7, 9 )
so
P( W > 10 )
= 1 - P( W ≤ 10 )
= 1 - P( W-7 /3 ≤ 10-7 /3 )
= 1 - P( Z ≤ 1 ) [ Z = W-7 / 3 ⇒ N(0, 1) ]
from Standard normal distribution table, P( Z ≤ 1 ) = 0.8413
so
1 - P( Z ≤ 1 ) = 1 - 0.8413 = 0.1587
Therefore P( W> 10) is 0.1587
Ok so after a loss of 28% she sold for 160
100-28=72
therefor
160=72%
find 100%
160:72=x:100
160/72=x/100
20/9=x/100
mutlply both sides by 900
2000=9x
divide boht sides by 9
222.2222222222=x
about $222.22
