document.write( "Question 609660: A scientist has two solutions, which she has labeled Solution A and Solution B. Each contains salt. Combining 18 ounces of Solution A with 72ounces of Solution B gives 90 ounces of a mixture that is 80% salt. Combining 40 ounces of Solution A with 10 ounces of Solution B gives 50 ounces of a mixture that is 65% salt.
\n" );
document.write( "What are the percentages of salt in the two solutions?
\n" );
document.write( " \n" );
document.write( "
Algebra.Com's Answer #383876 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! A scientist has two solutions, which she has labeled Solution A and Solution B. Each contains salt. Combining 18 ounces of Solution A with 72 ounces of Solution B gives 90 ounces of a mixture that is 80% salt. \n" ); document.write( "Combining 40 ounces of Solution A with 10 ounces of Solution B gives 50 ounces of a mixture that is 65% salt. \n" ); document.write( "What are the percentages of salt in the two solutions? \n" ); document.write( "----- \n" ); document.write( "Both Equations say salt + salt = salt \n" ); document.write( "------ \n" ); document.write( "18a + 72b = 80*90 \n" ); document.write( "40a + 10b = 65*50 \n" ); document.write( "---------------------- \n" ); document.write( "I used a matrix method to solve for a and b: \n" ); document.write( "a = 60 \n" ); document.write( "b = 85 \n" ); document.write( "-------- \n" ); document.write( "The percentage of salt in solution A is 60% \n" ); document.write( "The percentage of salt in solution B is 85% \n" ); document.write( "=========================================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " \n" ); document.write( " |