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Solve: A man mixed 120 pounds of 54% silver alloy with 40 pounds of a 78% silver alloy. What is the percentage of silver in the mixture?

User Sbordet
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1 Answer

2 votes

Answer:

60

Explanation:

you multiply 120 pounds with 54% and than add 40 times 78% and lastly you devide it all with combined mass(160pounds)

User Toth
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