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Vsevolod [243]
3 years ago
6

A certain shade of pink is creating by adding 3 cups of red paint to 7 cups of white paint

Mathematics
2 answers:
irakobra [83]3 years ago
7 0

A certain shade of pink is creating by adding 3 cups of red paint to 7 cups of white paint.

Since, 7 cups of white paint are added with 3 cups of red paint.

We have to determine that how many cups of red paint should be added to the paint when 1 cup of white paint is being added.

We will use unitary method to solve this problem.

So, 1 cup of white paint should be added with \frac{3}{7} cup of red paint to create pink paint.

Therefore,  \frac{3}{7} cup of red paint is added with 1 cup of white paint.

Yuki888 [10]3 years ago
6 0

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 \frac{x}{1} = \frac{3}{7}

                                                                      x = \frac{3}{7}

Hence \frac{3}{7} cups of red paint is needed for 1 cup of white paint.

The number in "?" is  \frac{3}{7} cups or 0.04286 cups.

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