document.write( "Question 28776: A pharmacist wishes to mix a solution that is 2% minoxidil. She has on hand 50 mL of a 1% solution, and she wishes to add some 4% solution to it to obtain the desired 2% solution. How much of the 4% solution should she add?\r
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document.write( "The equation that I got .5+.04(50+x)=.2(100+x)
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document.write( "I keep on getting a negative number. \n" );
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Algebra.Com's Answer #15691 by Paul(988)![]() ![]() ![]() You can put this solution on YOUR website! 1(50)+4x=2(x+50) \n" ); document.write( "50+4x=2x+100 \n" ); document.write( "2x=50 \n" ); document.write( "x=25\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Hence, she should add about 25 mL to the solution of 4%. \n" ); document.write( "Paul. \n" ); document.write( " |