Problema Solution
a sculpture wants to cast a bronze statue from an alloy that is 60% copper.he has 30 kilo of a 40% alloy. how much 80% copper alloy should he mix it with to obtain the 60% copper alloy?
Answer provided by our tutors
let
x = kg of 80% copper alloy, x>0
0.40*30 + 0.80*x = (30 + x)*0.60
by solving we find:
x = 30 kg
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he should mix 30 kilograms of the 80% copper alloy.