Answer:
33.4%= 33.4 ÷100×9000= 3006.0
Answer:
(X,Y)(18,12)
Step-by-step explanation:
x + y = 30
2x + 4y = 84
___________
2x+2y=60
2x+4y=84
_________
-2y=-24/-2y
y=12
2x+4(12)=84
2x+48=84
2x=84-48
2x/2=36/2
X=18
Assuming you know the quadratic formula:

You can fill in a, b and c in this and get:

Now, let's create a shorthand
to make the writing easier:

But since one root is three times the other root (but we don't know which one), we also know that:
or 
If you solve this, you get:
or 
However, since q is a square root, it must be postive.
So we know that:

From this you find that

So p = 3/2
The roots are x=1/2 and x=3/2.
Answer:
its the last one
Step-by-step explanation: