document.write( "Question 1129899: A nurse needs 50 mL of a 16% salt solution for a patient. She can only find a 13% salt solution and an 18% salt solution in the supply room. How many millimeters of the 13% solution should be mixed with the 18% solution to produce the desired amount of the 16% solution? \n" ); document.write( "
Algebra.Com's Answer #746529 by stanbon(75887)\"\" \"About 
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A nurse needs 50 mL of a 16% salt solution for a patient. She can only find a 13% salt solution and an 18% salt solution in the supply room. How many millimeters of the 13% solution should be mixed with the 18% solution to produce the desired amount of the 16% solution?
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\n" ); document.write( "Equation::
\n" ); document.write( "salt + salt = salt
\n" ); document.write( "0.13x + 0.18(50-x) = 0.16*50
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\n" ); document.write( "13x + 18(50) - 18x = 16*50
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\n" ); document.write( "5x = 2*50
\n" ); document.write( "x = 20mL (amt. of 13% solution needed)
\n" ); document.write( "50-x = 30mL (amt. of 18% solution needed)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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