Answer:
x=1
Step-by-step explanation:
x+3x+5x+7x+...+49x=625
(1+3+5+7+...+49)x=625 (1)
now consider s= 1+3+5+7+...+49
a=1
d=3-1=2
l=49
l=a+(n-1)d
49=1+(n-1)2
49-1=(n-1)2
48/2=n-1
n-1=24
n=24+1=25
s=n/2*(a+l)
s=25/2(1+49)
x=25/2×50
s=25×25=625
from (1)
625 x=625
x=625/625=1
Solution:
a. the person is a male, given that the person has a secondary education.
The probability that a person is a male, given that the person has secondary education is:
P(Male | Secondary education) ![=\frac{26}{78}=\frac{1}{3}](https://tex.z-dn.net/?f=%3D%5Cfrac%7B26%7D%7B78%7D%3D%5Cfrac%7B1%7D%7B3%7D)
Therefore, a person is a male, given that the person has secondary education is ![\frac{1}{3}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B3%7D)
b. The person does not have a college degree, given that the person is a female.
The probability that a person does not have a college degree, given that the person is a female is:
P(Not college degree | female) ![=\frac{47+52}{118}=\frac{99}{118}](https://tex.z-dn.net/?f=%3D%5Cfrac%7B47%2B52%7D%7B118%7D%3D%5Cfrac%7B99%7D%7B118%7D)
Therefore, a person does not have a college degree, given that the person is a female is ![\frac{99}{118}](https://tex.z-dn.net/?f=%5Cfrac%7B99%7D%7B118%7D)
Answer:
30 cm
Step-by-step explanation:
The circumference of a circle is
C = 2*pi*r
60pi = 2* pi *r
Divide each side by 2pi
60/2pi = 2 pi r/ 2pi
30 =r
Answer:
10 mystery books
Step-by-step explanation:
Animals:
Multiply the total number of books by the fraction of animal books
4/16*16
4 animal books
Adventure:
2 adventure books
Mystery:
Subtract the number of adventure and animal books from the total number of books
16-4-2
10
10 mystery books
Hope this helps! :)
Answer: 8.75t = c
Step-by-step explanation: 52.5/6 = 8.75 so 8.75$ per ticket.