Question

They is directly proportional to (x+y), and y
32-4 when x=4, the values of a when y: 16.9.​

Answer 1

Answer:

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Step-by-step explanation:

Answer 2

Answer:

Hiii...

Step-by-step explanation:

Y is proportional to x^2

So y= Ax^2

Where A is a constant

Y= 32 x= 3

32 = A3^2

32= A9

A= 32/9

Now x= 12.5

So y= 32*12.5/9

Y=44.44

Y~x^2

Y=Kx^2 after removing proportional sign,K is constant.

Y=32@x=3

X^2=3^2=9

32=9K from first line

K=32/9

K=3.55

Y=3.55X^2

Y=3.55(12.5)^2

Y=3.55*156.25

Y=554.687 answer

Hope this helps you.......