152700 is answer. Try to do these problems on paper then you can see where you went wrong . also try to do the actual question
The answer you just add and subtract
7+9=16
43-5=38
Answer:
a) 6
b) 4.5
c) unsure due to not knowing the whole problem
d) 35
Step-by-step explanation:
2x - 3y - 9z = -32
x + 3z = 8
-3x + y - 4z = -8
Add all the equations together.
-3y - 10z = -32
By looking at the first equation, 2x - 3y - 9z = -3y - 10z.
So 2x = -z.
By looking at the second equation, x + 3z = (-0.5z) + 3z = 8.
So 2.5z = 8, and z = 3.2.
This means that x = -1.6.
Let's substitute into our original equations!
-3.2 - 3y - 28.8 = -32
4.8 + y - 12.8 = -8
Therefore, y = 0!
Since these answers do not contradict each other, they are dependent.
The answers are x = -1.6, y = 0, z = 3.2.
Answer:
3 years old
Step-by-step explanation:
she gave her the banana at birth