The answer is -10! Glade I could help!!
<u>Answer:</u>
The correct answer option is C. P(blue) = 21%.
<u>Step-by-step explanation:</u>
We know that,
the total number of people in a group = 1200
the number of people with brown eyes = 468
the number of people with blue eyes = 252
the number of people with green eyes = 132
the number of people with black eyes = 348
To find the probability of a person with blue eyes to be chosen, we will divide the number of people with blue eyes by the total number of people in the group and multiply it by 100.
P (blue) =
×
= 21%
It is B.
x+y=3
y=9
To solve the equation you would substitute 9 in for y (in the first equation) and get
x+9=3
You would then subtract 9 from both sides of the equation to get
x=-6
B is the only choice where -6 is first in the ordered pair, but just to make sure, you could substitute -6 back in to the equation to get
-6+y=3
Add 6 to both sides to get y=9, and you know that the correct ordered pair is
(-6,9)