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Verified Answer :

bcalle

the formula is y = kx.
plug in 25 = k * 15 and solve for k. k = 5/3
Now use k in a new equation to solve for y.
y = (5/3)(6)
y = 10

wizard123

Direct Variation:
y = kx

First find k using given (x,y)

25 = 15k    ----->  k = 25/15 = 5/3

Now plug in x = 6 and k=5/3  into function to get y value:

y = (5/3)(6) = 30/3 = 10

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