document.write( "Question 263434: A silversmith mixed 30 g of a 70% silver alloy with 50 g of a 15% silver alloy. What is the percent concentration of the resulting alloy? (Round your answer to the nearest tenth of a percent.) \n" ); document.write( "

Algebra.Com's Answer #194129 by drk(1908) $\"\"$ $\"About$

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This is a mixture problem with out mixture information. Here is a table based on the given information
\n" ); document.write( "alloy . . . . . .% . . . . . .g . . . . . . .%g
\n" ); document.write( "70 . . . . . . . 70 . . . . 30 . . . . . .2100
\n" ); document.write( "15 . . . . . . .15 . . . . .50 . . . . . .750
\n" ); document.write( "mix . . . . . . x . . . . . .80 . . . . . .80x
\n" ); document.write( "looking at the third column, we get
\n" ); document.write( " $\"2100+%2B+750+=+80x\"$
\n" ); document.write( "adding we get
\n" ); document.write( " $\"2850+=+80x\"$
\n" ); document.write( "dividing, we get
\n" ); document.write( "x = 35.625
\n" ); document.write( "which is
\n" ); document.write( "35.63% = 35.6% \n" ); document.write( "

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