Respuesta :

Answer:

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Step-by-step explanation:

Answer:

y=30/3x

Step-by-step explanation:

If the constant of proportionality is 10 then..

y = 10x

In which equation do we multiply x, by 10 to get y

30/3  =10

The equation y = 30/3 x  has a constant of proportionality equal to 10.