document.write( "Question 865571: Nurse Levin added 50mL of dextrose to 1.8 liters of intravenous fluid but the doctor said a 10% concentration of dextrose is needed. Find the amount of dextrose that the nurse should add.\r
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Algebra.Com's Answer #521801 by MathTherapy(10552) $\"\"$ $\"About$

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Nurse Levin added 50mL of dextrose to 1.8 liters of intravenous fluid but the doctor said a 10% concentration of dextrose is needed. Find the amount of dextrose that the nurse should add.\r
\n" ); document.write( "\n" ); document.write( "The answer listed is 150mL but I cant figure out how they got it.


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document.write( "1.8 L = 1,800 mL\r
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document.write( "Let additional amount of dextrose needed be D
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document.write( "Total amount of dextrose =    10% of ENTIRE MIXTURE (equation thus formed)
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document.write( "Then:         50 + D     =   .1(50 + 1,800 + D)
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document.write( "              50 + D     =   .1(1,850 + D)
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document.write( "              50 + D     =    185 + .1D
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document.write( "             D - .1D     =    185 - 50
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document.write( "                 .9D     =    135
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document.write( "D, or additional amount of dextrose = , or , or  mL \n" );
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