Answer:
40
Step-by-step explanation:
If two variable y and x are related to one other
then they can be represented as y = kx.
where k is constant of proportionality
Number of football mums is represented by y
and number of ribbons is represented by x
Then y = kx
Also, It takes 160 ribbons to make 4 football mums
substituting y with 4 and
substituting x with 160 in y = kx, we have
4 = k*160
=> k = 4/160 = 1/40
Thus, constant of proportionality is 1/40.
But here option given are 40 140 80 14
so ,equation can be represented as
x = ky
substituting y with 4 and
substituting x with 160 in x = ky , we have
160 = k*4
=> k = 160/4 = 40
Thus, for equation x = ky , constant of proportionality is 40.
