Spirit

From 55% and 80% spirit, we would like to produce 0.2 kg of 60% spirit. How many of them must we use in a solution?

Final Answer:

a =  0.16 kg
b =  0.04 kg

Step-by-step explanation:

c1=55%=10055=2011=0.55 c2=80%=10080=54=0.8 m=0.2 kg c3=60%=10060=53=0.6  a+b = m c1 a + c2 b = c3   m  c1 a+c2 (ma)=c3 m 0.55 a+0.8 (0.2a)=0.6 0.2  0.55 a+0.8 (0.2a)=0.6 0.2  0.25a=0.04  a=0.250.04=0.16  a=254=0.16=0.16 kg
b=ma=0.20.16=0.04 kg



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You need to know the following knowledge to solve this word math problem:

algebrabasic operations and conceptsUnits of physical quantitiesthemes, topicsGrade of the word problem

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