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Please help me
The variables x and y are proportional. Use the values to find the constant of proportionality. Then write an equation that relates x and y. Write any fractions in the simplest form.

When y=45 , x=40 .

Please help me The variables x and y are proportional Use the values to find the constant of proportionality Then write an equation that relates x and y Write a class=

Respuesta :

y=kx

20=k(12)

k= 20/12 = 5/3

y= (5/3)x

y = 5x/3  or

3y=5x

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