document.write( "Question 251728: 9 gal of sugar solution was mixed with 6 gal of a 90% sugar solution to make 84%
\n" ); document.write( "sugar solutuin. Find a percent concentration of the first solution. \n" ); document.write( "
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9 gal. of a sugar solution was mixed with 6 gallon of a 90% sugar solution to make a 84% sugar solution. Find the percent concentration of the first solution.
\n" ); document.write( "Ans:
\n" ); document.write( "Let x= percentage of sugar concentration in 9 gallons
\n" ); document.write( "(9*x)+(6*.9)=15*.84
\n" ); document.write( "Simplfy:
\n" ); document.write( "9x+5.4=12.6
\n" ); document.write( "Solve:
\n" ); document.write( "9x=12.6-5.4
\n" ); document.write( "9x=7.2
\n" ); document.write( "x=7.2/9
\n" ); document.write( "x=.8
\n" ); document.write( "Converted in to percent, .8 is equal to 80%, so our answer is that there is 80% of sugar concentration in a 9 gallon sugar solution.\r
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