Question: a metalworker has a metal alloy that is 20?
Answer: Question 1014604: A metalworker has a metal alloy that is 20% copper and another alloy that is 60% copper. How many kilograms of each alloy should the metal worker combine to create 80kg of a 44% copper alloy? ANSWER 1: He should use 48 kg of 60% alloy. ANSWER 2: He should use 32 kg of 20% alloy.