Answer:
Step-by-step explanation:
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Answer:
572,421
Step-by-step explanation:
Answer:
Constant of proportionality is 12
The cost of buying new bicycle changes 12 dollar per week
Step-by-step explanation:
we are given
The equation as
![d=12w](https://tex.z-dn.net/?f=d%3D12w)
where
d represents the amount in dollars
w is number of weeks
now, we can compare it with
![y=kx](https://tex.z-dn.net/?f=y%3Dkx)
where
k is constant of proportionality
we can compare
and we get
k=12
So,
Constant of proportionality is 12
we can see that
![12=\frac{d}{w}](https://tex.z-dn.net/?f=12%3D%5Cfrac%7Bd%7D%7Bw%7D)
So,
The cost of buying new bicycle changes 12 dollar per week
Question 1:
4x+28
question 2:
18x-27