Question 934739
x = percentage of copper in the resulting mixture
y = grams of copper in the resulting mixture
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100*0.35 + 60*0.55 = (100 + 60)x/100
100*( 100*0.35 + 60*0.55 ) = (100 + 60)x
x = 100*( 100*0.35 + 60*0.55 )/(100 + 60)
x = percentage of copper in the resulting mixture = 42.5%
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y = (100 + 60)x/100
y = (100 + 60)*42.5/100
y = grams of copper in the resulting mixture = 68 grams
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