Brothers
1. 12
2. 16
3. 14
4. 8
5. ?
___________________
mean of the ages of 5 brothers is 13 years



Answer:
-1+i
Step-by-step explanation:
(8+10i)-(9+9i)
8+10i-9-9i
8-9+10i-9i
-1+10i-9i
-1+i
Answer:
divide each term in the equation by the coefficient or multiply each term by the reciprocal of the coefficient
Step-by-step explanation:
Answer:
The correct answer is
.
Step-by-step explanation:
A container contains tiles numbered from 1 through 40.
Let the experiment be to drawn a tile randomly from the container. The draws are carried on by replacement method. Then a second tile is drawn randomly.
Probability that the first tile is number 7 =
= 
Probability that the second tile is number 25=
= 
Thus the probability of the first tile is number 7 and the second tile is number 25 is given by
.
Let x = age of jack
Let y = age of Lacy
x=3y (Jack age is 3 times that of Lacy)
(x+y)-8 = 25
Substituting value of x:
(3y+y) -8 = 25
4y - 8 = 25
4y = 33
y = 33/4 = 8.25 or 8 years 3 months (age of Lacy)
x = 3(8.25) = 24.75 or 24 years 9 months (age of Jack)
Checking:
Substituting in equation ( x + y ) -8 = 25
24.75 + 8.25 - 8 = 25
25 = 25