Answer:
150 boys were enrolled in 2012
Step-by-step explanation:
Let the number of boys enrolled in 2012 be x
Let the number of girls enrolled in 2012 be x + 200
Ratio of boys to girls in 2012 enrollment = 3/7
Now;
3/7 = x/x + 200
7x = 3(x + 200)
7x = 3x + 600
7x - 3x = 600
4x = 600
x = 600/4
x = 150 boys
Hence, 150 boys were enrolled in 2012
6y :))))))))))))))))))))))))))))))))))))))))))
Answer:
0.95 liter in each container
Step-by-step explanation:
Orange juice=2.8 liters
Pineapple juice=0.75 liter
Ginger ale=1.2 liters
If Liv mix the three ingredients above to make punch and he split the punch into 5 containers, how much punch will be in a container.
Firstly,
Add the three ingredients together.
We have,
2.8 + 1.2 + 0.75=4.75 liters
Next is to divide the total liters by 5
That is,
4.75/5=0.95 liter
Given:
The equation of ellipse is

To find:
The length of the minor axis.
Solution:
The standard form of an ellipse is
...(i)
where, (h,k) is center, if a>b, then 2a is length of major axis and 2b is length of minor axis.
We have,
...(ii)
On comparing (i) and (ii), we get

Taking square root on both sides.

Consider only positive value of b because length cannot be negative.

Now,
Length of minor axis = 
= 
= 
So, the length of minor axis is 8 units.
Therefore, the correct option is B.