document.write( "Question 221109: This has been troubling me for some time now: How many gallons of an 8% acid solution and a 22% acid solution need to be mixed to make 14 gallons of a 13% acid solution? \n" ); document.write( "
Algebra.Com's Answer #165880 by stanbon(75887)\"\" \"About 
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How many gallons of an 8% acid solution and a 22% acid solution need to be mixed to make 14 gallons of a 13% acid solution?
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\n" ); document.write( "Equation:
\n" ); document.write( "acid + acid = acid
\n" ); document.write( "0.08x + 0.22(14-x) = 0.13*14
\n" ); document.write( "Multiply thru by 100 to get:
\n" ); document.write( "8x + 22*14 - 22x = 13*14
\n" ); document.write( "-14x = -9*14
\n" ); document.write( "x = 9 gallons (amt. of 8% solution in the mixture)
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\n" ); document.write( "14-x = 5 gallons (amt. 22% solution in the mixture)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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