document.write( "Question 230402: Can you please help me solve this? A chemist wants to mix distilled water with a 75% solution of sulfuric acid to produce a 60% solution. If 3 gallons of distilled water is used, how much of 75% is needed? \n" ); document.write( "
Algebra.Com's Answer #170850 by ankor@dixie-net.com(22740)\"\" \"About 
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A chemist wants to mix distilled water with a 75% solution of sulfuric acid to produce a 60% solution.
\n" ); document.write( " If 3 gallons of distilled water is used, how much of 75% is needed?
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\n" ); document.write( "let x = amt of 75% solution (use the decimal equiv)
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\n" ); document.write( "A simple \"amt of acid\" equation
\n" ); document.write( ".75x = .60(x+3)
\n" ); document.write( ".75x = .6x + 1.8
\n" ); document.write( ".75x - .6x = 1.8
\n" ); document.write( ".15x = 1.8
\n" ); document.write( "x = \"1.8%2F.15\"
\n" ); document.write( "x = 12 gal of 75% solution required
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\n" ); document.write( "Check to see if equality reigns here
\n" ); document.write( ".75(12) = .60(12+ 3)
\n" ); document.write( "9 = 9 \n" ); document.write( "
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