document.write( "Question 1198982: A Pharmacist needs 500 ml of 10% phenobarbital solution. She has only a 5% phenobarbital solution and a 25% phenobarbital solution available. How many ml of 5% solution should she mix to obtain the desired solution. \n" ); document.write( "
Algebra.Com's Answer #832665 by josgarithmetic(39620)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "SOLUTION CONC. %        VOL.mL       PURE\r\n" );
document.write( "         5                x          0.05x\r\n" );
document.write( "        25              500-x        0.25(500-x)\r\n" );
document.write( "        10              500          0.10*500\r\n" );
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\n" ); document.write( "\"0.05x%2B0.25%28500-x%29=0.10%2A500\"--------solve this equation for x. \n" ); document.write( "
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