A painting is made from three different colors whose ratios are as follows: 4 parts blue, 3 parts red, and 3 parts green. The blue part of the painting took 12 gallons of paint. How many gallons of paint were needed for the green part of the painting

9 gallons

Step-by-step explanation:

Given: Ratio of colors in painting:

4 parts blue, 3 parts red, and 3 parts green.

Total parts = 4+3+3 =10

Fraction of blue =

Since, Quantity of blue color used = 12 gallons

Let total quantity of color be x,

Total color used = 30 gallons

Color used for green part only =

Hence, 9 gallons of paint were needed for the green part of the painting.

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step-by-step explanation: