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Answered

If y is directly proportional to x, when y=36, then x=4. Findy y when x=3

Sagot :

let : k = proportionality constant

y=kx
36= k*4
36/4 =k
9= k

since X=3 and k =9 we plug-in this values into our original equation
y=kx
y= 9*3
y = 27