document.write( "Question 448228: 9 gal of a sugar solution was mixed with 6 gal. of a 90% sugar solution to make a 84% sugar solution. Find the percent concentration of the first solution. \n" ); document.write( "
Algebra.Com's Answer #316226 by jorel1380(3719)\"\" \"About 
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9m+6(.9)=15(.84)
\n" ); document.write( "9m+5.4=12.6
\n" ); document.write( "9m=7.2
\n" ); document.write( "m=.8
\n" ); document.write( "The first solution was an 80% concentration..
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