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Paint is mixed in a ratio of 2 to 7. what is the answer for 20 drops of paint

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To create passion pink with a 2:7 ratio of red to white paint, using 20 drops of red paint requires 70 drops of white paint, determined through the proportion
\( (2)/(7) = (20)/(x) \).

To determine the number of drops of white paint needed to create passion pink, we use the given ratio of red to white paint, which is 2:7. This ratio indicates that for every 2 parts of red paint, 7 parts of white paint are used in the mixture.

If you use 20 drops of red paint, you can set up a proportion to find the corresponding amount of white paint. Let x represent the number of drops of white paint.


\[ (2)/(7) = (20)/(x) \]

Cross-multiplying gives 2x = 140, and solving for x yields x = 70.

Therefore, to make passion pink with 20 drops of red paint, you would need 70 drops of white paint.

The probable question may be:

A color called passion pink is made by mixing red paint and white paint in a ratio of 2:7. How many drops of white paint do you need: if you use 20 drops of red paint?

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