SOLUTION: A certain brass alloy contains 35% zinc and 3.0% lead. Then x kg of zinc and y kg of lead are added to 200kg of the original alloy to make a new alloy that is 40% zinc and 4.0% lea
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Question 1146673: A certain brass alloy contains 35% zinc and 3.0% lead. Then x kg of zinc and y kg of lead are added to 200kg of the original alloy to make a new alloy that is 40% zinc and 4.0% lead.
(a) Show that the amount of zinc is given by
0.35(200) + x = 0.40(200 + x + y)
and that the amount of lead is given by
0.030(200) + y = 0.040(200 + x + y)
(b) Solve for x and y.
Please show all steps. Thanks. Answer by josgarithmetic(39617) (Show Source):
(