Answer:
250 total sixth graders
Step-by-step explanation:
40% goes into 100% 2.5 times. so multiply 2.5 times 100.
This gives you a total of 250. Double check by multiplying 250*.4 which equals 100.
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let 2 no. be x and y
x+y=31 ..... (1)
x-y=11 .........(2)
from (1)
x=31-y ..........(3)
putting (3) in (2)
31-y-y=11
-2y=11-31
-2y=-20
2y=20
y=10
Answer: (9, -3), (1, -1), (0, 0), and (4, 2)
<u>Step-by-step explanation:</u>
Inverse is when the x's and y's are swapped:
The given points are: {(-3, 9), (-1, 1), (0, 0), (2, 4)}
The inverse points are: {(9, -3), (1, -1), (0, 0), (4, 2)}
ANSWER
The required equation is:
EXPLANATION
The given equation is
Dividing through by 225 we obtain;
This is a hyperbola that has it's centre at the origin.
If this hyperbola is translated so that its center is now at (0,5).
Then its equation becomes:
We multiply through by 225 to get;
We now expand to get;
The equation of the hyperbola in general form is