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Math·Algebra·Linear equations in two variables
easyA piece of a metal alloy called delta metal has a total mass of 200.0 grams. The equation c+z+3.6=200.0 relates the mass of copper c, in grams, and the mass of zinc z, in grams, in this piece of metal. If this piece of metal contains 110.0 grams of copper, how many grams of zinc does it contain?
A
86.4
B
90.0
C
110.0
D
196.4