D=2n
.05n+.1d=3.5
I multiplied the nickels and dimes by these values because that is their actual monetary value
.05n=3.5-.1d
multiply everything by 20
n=70-2d
d/2=70-2d
.5d+2d=70
2.5d=70
d=28
n=14
so there are <u>28 dimes and 14 nickels
</u>checking this answer
28 dimes = $2.8
14 nickels = .70
2.8+.7=3.5
7+3x-12x=3x+1
We will first make all the numbers which have x in go to the left.
So 7+3x-12x-3x, we make the 3x negative since to make it move it needs to change.
Then we will make all the sevens go to the right, so 3x-12x-3x=1-7.
So now it is much easier to figure out.
-12x=-6
Answer:
ok
Step-by-step explanation:
<span>The answer is true
Let's imagine that we have the following function function:
</span>
![y = x ^ 2 ](https://tex.z-dn.net/?f=y%20%3D%20x%20%5E%202%20%0A)
<span>We have to:
Independent variable: x
Dependent variable: y
For x = -1:
</span>
![y = (- 1) ^ 2 = 1 ](https://tex.z-dn.net/?f=y%20%3D%20%28-%201%29%20%5E%202%20%3D%201%20%0A)
<span> For x = 1:
</span>
![y = (1) ^ 2 = 1 ](https://tex.z-dn.net/?f=y%20%3D%20%281%29%20%5E%202%20%3D%201%20%0A)
<span> We observe that the independent variable can only obtain one result.
Answer:
True</span>
1841 ≈ 1800 (nearest hundred)
964 ≈ 1000 (nearest hundred}
<span>1,841 + 964 </span>≈ 1800 + 1000 = 2800 (Answer B)