Mathematics, 26.01.2021 18:10 ramberson101
a 60 kg ingot of brass consists of zinc and copper. 25% of the ingot consists of zinc. how many kilograms of copper does the ingot of brass contain . please with explanation. no spam
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Mathematics, 21.06.2019 16:00
The equation x2 โ 1x โ 90 = 0 has solutions {a, b}. what is a + b?
Answers: 1
Mathematics, 21.06.2019 22:30
Given the system of equations presented here: 2x + 4y = 14 4x + y = 20 which of the following actions creates an equivalent system such that, when combined with the other equation, one of the variables is eliminated? multiply the second equation by รขโ4 to get รขโ16x รขโ 4y = รขโ80 multiply the second equation by รขโ1 to get รขโ4x รขโ y = รขโ20 multiply the first equation by 2 to get 4x + 8y = 28 multiply the first equation by รขโ1 to get รขโ2x รขโ 4y = รขโ14
Answers: 1
a 60 kg ingot of brass consists of zinc and copper. 25% of the ingot consists of zinc. how many kilo...
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