the ratio of copper and zinc in the alloy is 6:7 if the weight of copper is 37.5g find the weight if zinc
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6:7::37.5:x
7×37.5=6x
x=7×37.5/6
x=7×12.5/2
x =7×6.25
x=43.75
7×37.5=6x
x=7×37.5/6
x=7×12.5/2
x =7×6.25
x=43.75
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