document.write( "Question 272008: A chemist wants to make 75 liters of 16% acid solution. He is going to make it by mixing a 10% acid and a 25% acid solution. How many liters of each will he need? \n" ); document.write( "
Algebra.Com's Answer #199163 by ankor@dixie-net.com(22740)\"\" \"About 
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A chemist wants to make 75 liters of 16% acid solution.
\n" ); document.write( " He is going to make it by mixing a 10% acid and a 25% acid solution.
\n" ); document.write( "How many liters of each will he need?
\n" ); document.write( ":
\n" ); document.write( "Let x = amt of 25% solution
\n" ); document.write( "The total is to be 75 liters, therefore
\n" ); document.write( "(75-x) = amt of 10% solution required
\n" ); document.write( ":
\n" ); document.write( ".25x + .10(75-x) = .16(75)
\n" ); document.write( ":
\n" ); document.write( ".25x + 7.5 - .1x = 12
\n" ); document.write( ":
\n" ); document.write( ".25x - .10x = 12 - 7.5
\n" ); document.write( ":
\n" ); document.write( ".15x = 4.5
\n" ); document.write( "x = \"4.5%2F.15\"
\n" ); document.write( "x = 30 liters of 25% solution
\n" ); document.write( "and
\n" ); document.write( "75 - 30 = 45 liters of 10% solutions \n" ); document.write( "
\n" );