SOLUTION: how many liters of 20% silver must added to 80 liters of 50% silver to make an alloy that is 40% silver?
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Question 1015654: how many liters of 20% silver must added to 80 liters of 50% silver to make an alloy that is 40% silver?
Answer by macston(5194) (Show Source): You can put this solution on YOUR website!
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T=amount of 20%; F=amount of 50%
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0.20T+0.50F=0.40(T+F)
0.20T+0.50(80)=0.40(T+80)
0.20T+40.0=0.40T+32.0
8.0=0.20T
40=T
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ANSWER: 40 liters of 20% solution should be added.
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