Math proportions: Apple Green paint i made by mixing 7 parts yellow to 3 parts blue. how much yellow should be mixed with 9 pints of blue?

Answer 1

Hi Theodore, the proportion to solve is:

7 / 3 = x / 9

Where x is the amount of yellow paint needed:

Cross multiply gives:

7 * 9 = 3 * x

Divide both sides by 3:

63 / 3 = x

x = 21

You would need 21 parts of yellow paint to mix with the 9 parts of blue paint.

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