document.write( "Question 901488: A silversmith mixed 45g of a 70% silver alloy with 40g of a 25% silver alloy. What is the percent concentration of the resulting ally? Round your answer to one decimal place \n" ); document.write( "
Algebra.Com's Answer #546766 by richwmiller(17219)\"\" \"About 
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.70*45+.25*40=x(45+40)
\n" ); document.write( ".70*45+.25*40=x(85)
\n" ); document.write( "31.5+10=85x
\n" ); document.write( "41.5=85x
\n" ); document.write( "x=41.5/85
\n" ); document.write( "x=0.488=48.8%\r
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