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A shade of green paint is made by mixing 3 parts of blue paint with 7 parts of yellow paint. How much ellow paint do you need to make 70 quarts of green paint

Respuesta :

Blue : Yellow : Green
3 : 7 : 3 + 7
3: 7 : 10

10 parts = 70 quarts
1 part = 70 ÷ 10 = 7 quarts
7 parts = 7 x 7 = 49 quarts

He needs 49 quarts of yellow paints

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