Answer: 1) B is correct, constant of variation is -2.
Step-by-step explanation:
1)
Direct variation states that a relationship between the two variables. we say y varies directly as x
i.e, or y =kx.................[1] ; where k is the constant of variation.
Given the equation:
Divide both sides by -4 we get;
Simplify:
.......[2]
On comparing equation [2] with [1] we get;
k = -2
Answer:
So, to 1 d.p. 7 is about 23% out of 30. (7 of 30=23%)
Step-by-step explanation:
7/30 x 100 =23.3333333333% or 70/3%.
By using the given table, we will get the linear equation:
h = n - 9
<h3>
How to find the equation for Hakim?</h3>
We know that they always get comic books together, so always that Nisha's collection increases by one, Hakim's collection will also increase by one, so we will have a linear equation.
Now, if you look at the given table, you can see that Hakim's collection is always 9 units less than Nisha's collection, then the linear equation that models the relation between the two collections, h and n, is really straightforward, it will be:
Hakim's collection = Nisha's collection - 9
Using the variables, we get:
h = n - 9
That is the linear equation Hakim wanted.
If you want to learn more about linear equations:
brainly.com/question/1884491
#SPJ1
The answer is C because if you multiply 4 and 2 by 2 it would become 8 and 4, 8+4=12
