Step-by-step explanation:
I don't think u can solve it with the full stop or decimal in between I can solve the problem for me if u type it without decimal point
X = 13, Y = 10
I'm a bit tired right now, so I'm not going to explain my work, but hopefully this still helps.
Good luck with your schoolwork/homework!
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Apologies in advance for wrong answers or bad explanation.
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
