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Novay_Z [31]
3 years ago
12

What is the constant of proportionality in the equation 9y = 45x?

Mathematics
2 answers:
olganol [36]3 years ago
6 0

We have been given an equation 9y=45x and we are asked to find the constant of proportionality of this equation.

In order to find constant of proportionality we will use proportionality constant formula y=kx , where k is proportionality constant.

Now let us try to write our given equation in this form,

9y=45x

Now let us divide both sides of our equation by 9

\frac{9y}{9}=\frac{45x}{9}

After dividing both sides of our equation by 9 we will get

y=5x

Upon comparing our equation with  y=kx we get proportionality constant as 5.




Mars2501 [29]3 years ago
3 0
Divide by the coefficient of y.
  y = (45/9)x
  y = 5x

The constant of proportionality is 5.
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