an alloy contains copper and zinc in the ratio of 2:11.find the weight of copper in yhe the alloy, if it has 28.6 grams of zinc
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let the copper be x
2:11 = 28.6 × x
x = 28.6 ×2/11
x = 57.2 / 11
x = 5.2
2:11 = 28.6 × x
x = 28.6 ×2/11
x = 57.2 / 11
x = 5.2
Answered by
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Answer:
5.2 grams or 5 1/5 grams
Step-by-step explanation:
Let zinc be 11x.
Let copper be 2x.
Therefore 11x= 28.6 grams
Therefore x= 28.6/11= 2.6
Therefore copper= 2.6 x 2 = 5.2 grams or 5 1/5 grams
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