document.write( "Question 1066882: If three different concentration are used (3,15,30W/W) how may they be mixed in order to prepare a 10% ointment ?! not solved by the graphically way !!! \n" ); document.write( "

Algebra.Com's Answer #682104 by josgarithmetic(39618) $\"\"$ $\"About$

You can put this solution on YOUR website!
Some information is missing.\r
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\n" ); document.write( "\n" ); document.write( "Imagine you want 100 of whatever weight quantity of the ointment.
\n" ); document.write( "x, y, z, the weights of the 3, 15, and 30, of whatever concentration, probably meant as percents.\r
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\n" ); document.write( "\n" ); document.write( " $\"x%2By%2Bz=100\"$ -----assuming 100 of your weight units of the mixture\r
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\n" ); document.write( "\n" ); document.write( " $\"%283x%2B15y%2B30z%29%2F100=10\"$ -----to account for the resulting 10% concentration mixture\r
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\n" ); document.write( "\n" ); document.write( "You still need one more described relationship. \n" ); document.write( "

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