Answer:
5. 4.2
6. 100.7
7. 14.8
8. 0.1
9. 24.192
10. 0.0996
11. 213
12. 0.156
Step-by-step explanation:
An integer is a natural number (1, 2, 3 ...), zero, or the negative of a natural number.
-76.15 is none of those,
Answer: NO
Since one equation has a negative y and the other has a positive y, I'm going to use those since they cancel each other out. Before that, the two y's need to be equal to each other.
x+2y=6
x-y=3
Multiply the bottom equation by two so then you have:
x+2y=6
2x-2y=6
The y's now cancel out:
x=6
2x=6
Add them together
3x=12
Divide
x=4.
To find y, plug x into either equation (*don't have to do both, but I will)
(4)+2y=6
(4)-y=3
Subtract four
2y=2
-y=-1
Divide each
2y/2 = 2/2
y=1
-y/-1 = -1/-1
y=1
The answer is:
x=4
y=1
I hope that helps!
Answer:
and ![(\sqrt[5]{x} )^2](https://tex.z-dn.net/?f=%28%5Csqrt%5B5%5D%7Bx%7D%20%29%5E2)
Step-by-step explanation:
They are both correct.
Answer:
Shaida is 21 and we know that Nasreen is 6
So after x years Shaida will be twice as old as Nasreen, which means that :
21 + x = 2 ( 6 + x )
21 + x = 12 + 2x
9 = x
So after 9 years is the answer