document.write( "Question 1087795: A pharmacist wishes to mix a solution that is 6% Minoxidil. She has on hand 90 ml of a 4% solution and wishes to add some 8% solution to obtain the desired 6% solution. How much 8% solution should she add?\r
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document.write( "she should add ? ml \n" );
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Algebra.Com's Answer #702085 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! A pharmacist wishes to mix a solution that is 6% Minoxidil. \n" ); document.write( " She has on hand 90 ml of a 4% solution and wishes to add some 8% solution to obtain the desired 6% solution. \n" ); document.write( " How much 8% solution should she add? \n" ); document.write( ": \n" ); document.write( "You can look at this and see you need just much of one as the other because 6% is half way between 4% and 8% \n" ); document.write( "But here is the mixture procedure \n" ); document.write( "let x = amt of 8% solution required \n" ); document.write( ": \n" ); document.write( "The decimal equiv equation \n" ); document.write( ".04(90) + .08x = .06(x+90) \n" ); document.write( "3.6 + .08x = .06x + 5.4 \n" ); document.write( ".08x - .06x = 5.4 - 3.6 \n" ); document.write( ".02x = 1.8 \n" ); document.write( "x = 1.8/.02 \n" ); document.write( "x = 90 ml of the 8% solution \n" ); document.write( " |