document.write( "Question 897081: A solution that is 30% salt is mixed with a solution that is 40% salt. Which of the following ( 30%, 35%,39%, 40%, and 45%) are not possible choices for the concentration of salt in the resulting mixture. \n" ); document.write( "
Algebra.Com's Answer #543960 by Alan3354(69443)\"\" \"About 
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45% is not possible.
\n" ); document.write( "Add a lesser concentration (30%) to 40% will not increase the concentration of the mix.
\n" ); document.write( "30% and 40% are possible if none of the other mix is used.
\n" ); document.write( "Equal amounts gives the average, 35%
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