Acertain shade of pink is creating by adding 3 cups of red paint to 7 cups of white paint c = cups c of white | c of red 1 ? 7 3 whats the answer for "? "

Given that a certain shade of pink is created by adding 3 cups of red paint with 7 cups of white paint.

That means ratio of red paint and white paint must 3:7 .

Let x be the amount of red paint cups for 1 cup of white paint.

Then ratio of red paint to white paint is

Hence cups of red paint is needed for 1 cup of white paint.

The number in "?" is   or 0.04286 cups.

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