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
[tex]d=12w[/tex]
where
d represents the amount in dollars
w is number of weeks
now, we can compare it with
[tex]y=kx[/tex]
where
k is constant of proportionality
we can compare
and we get
k=12
So,
Constant of proportionality is 12
we can see that
[tex]12=\frac{d}{w}[/tex]
So,
The cost of buying new bicycle changes 12 dollar per week
