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OpenStudy (anonymous):
one alloy (A) is 5% silver. It must be combined with alloy B, that is 15% silver. If i need to end up with 100 pounds of a 12% alloy, how much of alloy A and B I need? plz help asap
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OpenStudy (amistre64):
A@.05 = 100(.12-.15)/(.05-.15) B = 100 - A
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