ANSWER:
The probability is 0.25
STEP-BY-STEP EXPLANATION:
In this case, we must take into account the number of children who have brown eyes and black hair.
If we look at the table we can see that it is 0.25, that is, if there are 100 children, 25 have these characteristics, therefore
5x + y = 15
y = -5x + 15
Substituting y= -5x+15 from first equation into second equation:
3x + 2y = 16
3x + 2·(-5x + 15) = 16
3x - 10x + 30 = 16
-7x + 30 = 16
7x = 30 - 16 = 14
x = 2
Substituting x=2 into the first equation:
5x + y = 15
5(2) + y = 15
10 + y = 15
y = 15 - 10
y = 5
So your final answers are x=2 and y=5.
Answer:
(4) 2+2
(6) 3+3
(10) 5+5
Step-by-step explanation:
Easy as points if you ask me
