document.write( "Question 166193: How many grams of a 25% antibiotic solution should be added to 10 grams of a 60% antibiotic solution in order to get a 30% antibiotic solution? \n" ); document.write( "
Algebra.Com's Answer #122460 by checkley77(12844)\"\" \"About 
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.60*10+.25x=.30(10+x)
\n" ); document.write( "6+.25x=3+.3x
\n" ); document.write( ".25x-.30x=3-6
\n" ); document.write( "-.05x=-3
\n" ); document.write( "x=-3/-.05
\n" ); document.write( "x=60 grams of 25% solution are used.
\n" ); document.write( "Proof:
\n" ); document.write( ".60*10+.25*60=.30(10+60)
\n" ); document.write( "6+15=.30*70
\n" ); document.write( "21=21\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "
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