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
\n" ); document.write( "\n" ); document.write( "The equation that I got .5+.04(50+x)=.2(100+x)
\n" ); document.write( "I keep on getting a negative number.
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Algebra.Com's Answer #15691 by Paul(988)\"\" \"About 
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
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\n" ); document.write( "\n" ); document.write( "Hence, she should add about 25 mL to the solution of 4%.
\n" ); document.write( "Paul.
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