The ratio of copper and zinc in alloy is 9: 7. If the weight of zinc in alloy is 9.8 kg, find the weight of copper in alloy.
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9.8 is equal for 7 of copper
1=9.8/7
9=9.8/7×9
that Is equal to 12.6
1=9.8/7
9=9.8/7×9
that Is equal to 12.6
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