Yes.
8/20 = 6/15 = 4/10 = 2/5
2×2=4
1×4=4
and I guess you can also flip 1×4 around and have 4×1 as your third one?
Answer:
-1/5
Step-by-step explanation:
make them have the same denominator by multiplying -1/2 by 5 on the bottom and top which then gives you -5/10 + 3/10 that then gives your -2/10 which reduces to -1/5
we know that
A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form y=Kx
where
K is the constant of proportionality or slope of the linear equation
In this problem
x ----> is the number of months
y -----> is the total amount savings
we have the ordered pairs
(4,80) and (7,140)
so
Find the value of K
K=y/x
For (4,80)
K=80/4=20
For (7,140)
K=140/7=20
The value of K is the same for both ordered paits
that means------> is a proportional relationship
therefore
the linear equation is
y=20x
the answer is the option A, C and D
Answer:
The second choice
Step-by-step explanation:
So first we would plug in the first term which is 2 so we would get 
times 
so next we would see that the common ration is -3 since every time the number is being multiplied by -3. so then our equation would be 
times 
. Now we would just find the choice that matches and it would be the second choice.
