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Answer:
The constant of proportionality is 3.50.
Step-by-step explanation:
We know that when y directly varies with x, such that
The number 'k' is called the constant of proportionality.
Given the equation
as
so
∵
Here the value of k = 3.50, which is the constant of proportionality.
Therefore, the constant of proportionality is 3.50.