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House blend coffee is 50% Colombian beans and special blend coffee is 80% Colombian beans. How much of each should be used to produce 100kg of a blend that's is 68% Columbia beans?

Respuesta :

N =  80% Columbian beans

0.8n + 0.5(100 - n) = 0.68(100)

0.8n - 0.5n + 50 = 68

0.3n = 18

n = 60

Your answer is 60kg's 

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