Question

answer this question with explanation correctly and I'll follow you if the answer is wrong I'll report the answer
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Answer 1

Answer:

zinc = 3x

copper 7x = 12.6

x = 12.6 ÷ 7 =1.8

3x = 3× 1.8 = 5.4

total weight of alloy = 12.6 + 5.4 = 18.0 grams