I'm not 100% sure but this is how i worked it out
1/3 x 114/1 = 38
114 - 38 = 76 hydrogen
Hope this helps
Answer:
A
Step-by-step explanation:
This is how I write
y=kx+m
but I have seen some write it like this:
y=mx+b
Well both of them are the same thing, I'll use the first one because I'm more comfortable with it.
y=kx+m
To find out what k

So you first need to choose two points.
I'll go for (0,-5) and (2,0)


Now you could insert k into the equation and it will look like this.

To find out what m is just pick one point and insert it into the equation. So if I pick (0,-5). 0=X therefore it should be replaced by x and -5=y therefore it should also be replaced by y.

m=-5
Try it with another point to see if you get the same answer. this time I'll pick (-6,10)

m= -5
The equation will be y=-5/2x-5)
She can buy 3 bracelets. Working out is in the photo
Answer: 25
Step-by-step explanation: When you divide exponents with the same base, you can subtract the exponents. It becomes 5^4-2, which is 5^2, which is 25
Answer:
-3/5
Step-by-step explanation:
Use any two points and sub them in the m=y2-y1/x2-x1 formula.