document.write( "Question 537253: How many liters of a 10% acid solution must be mixed with a 50% acid solution in order to obtain 25 litres of a 30% solution? \n" ); document.write( "
Algebra.Com's Answer #352781 by richwmiller(17219)\"\" \"About 
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x+y=25
\n" ); document.write( ".1*x+.5y=.3*25
\n" ); document.write( "x=12.5 and y=12.5
\n" ); document.write( ".1*12.5+.5*12.5=.3*25=7.5\r
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\n" ); document.write( "1.25+6.25=7.5\r
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