Verified Answer :

akindave

y=4.4 is the correct answer

Value of y is -4.356 when x = 6.6

What is equation?

Equation is the defined as mathematical statements that have a minimum of two terms containing variables or numbers is equal.

y varies directly with x,

Let variation constant = k

y =kx,

y = -6.6 and x=9.9

-6.6 = k(9.9),

k = -6.6/9.9

So k = -0.66

The variation equation is y = -0.66x

Substitute the value of x=6.6 in above equation

y = -0.66×6.6

y = -4.356

Hence, value of y is -4.356 when x = 6.6

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