document.write( "Question 886472: A pharmacist mixes a cream that is 0.5% hydrocortisone with a second cream that 0.74% hydrocortisone to obtain 5 grams of a cream that is 0.68% hydrocortisone. How many grams of each cream must be used? Qive the equations you used to solve the equation. \n" ); document.write( "
Algebra.Com's Answer #535969 by josgarithmetic(39618)\"\" \"About 
You can put this solution on YOUR website!
This lesson tells and shows everything you need to know. Equations AND solutions.\r
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\n" ); document.write( "\n" ); document.write( "Then here is a start to the solving of that problem you wanted help on:\r
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\n" ); document.write( "\n" ); document.write( "\"AmountofHydrocortizone%2FTotalMixture=fractionAsHydrocortizone\" and the sum of the quantities mixed will be equal to the 5 grams amount desired.\r
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\n" ); document.write( "\n" ); document.write( "Let u = grams of 0.5% hydrocortizone cream
\n" ); document.write( "Let v = grams of 0.74% hydrocortizone cream\r
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\n" ); document.write( "\n" ); document.write( "\"%280.5u%2B0.74v%29%2F5=0.68\" and \"u%2Bv=5\"\r
\n" ); document.write( "\n" ); document.write( "Solve the system for u and v.
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