One alloy is 70% lead and 30% zinc, and another alloy is 40% lead and 60% zinc. Find the amount of each alloy needed to
Posted: Tue Jul 12, 2022 12:05 pm
One alloy is 70% lead and 30% zinc, and another alloy is 40% lead and 60% zinc. Find the amount of each alloy needed to make 120 kg of an alloy that is 50% lead and 50% zinc (to the nearest kg).