an alloy contains Copper and Zinc in the ratio 7:3. A certain quantity of alloy contains 12. 6 gram of copper. how much does this alloy weight?
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Let the amount of copper= 7x
amount of zinc = 3x
according to the question
copper= 12.6gram
7x=12.6
=>x=12.6/7=1.8
as x= 1.8
zinc=3x=3*1.8=5.4gram
alloy=12.6/5.4 =12.33...gram
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amount of zinc = 3x
according to the question
copper= 12.6gram
7x=12.6
=>x=12.6/7=1.8
as x= 1.8
zinc=3x=3*1.8=5.4gram
alloy=12.6/5.4 =12.33...gram
Mark me brainlist plz
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