document.write( "Question 491069: A dehydrated patient needs a 6.8% saline IV. Unfortunately, the hospital only has bags of 2% and 8% saline solutions. How many liters of each of these solutions should be mixed together to yield 2 liters of the desired concentration? \n" ); document.write( "
Algebra.Com's Answer #334593 by ankor@dixie-net.com(22740)\"\" \"About 
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A dehydrated patient needs a 6.8% saline IV. Unfortunately, the hospital only has bags of 2% and 8% saline solutions.
\n" ); document.write( " How many liters of each of these solutions should be mixed together to yield 2 liters of the desired concentration?
\n" ); document.write( ":
\n" ); document.write( "Let x = amt of 8% solution required
\n" ); document.write( "the resulting amt is to be 2 liters, therefore
\n" ); document.write( "(2-x) = amt of 2% solution required
\n" ); document.write( ":
\n" ); document.write( "Write a decimal form of the amt of saline equation
\n" ); document.write( ":
\n" ); document.write( ".08x + .02(2-x) = .068(2)
\n" ); document.write( ".08x + .04 - .02x = .136
\n" ); document.write( ".08x - .02x = .136 - .04
\n" ); document.write( ".06x = .096
\n" ); document.write( "x = \".096%2F.06\"
\n" ); document.write( "x = 1.6 liters of the 8% solution
\n" ); document.write( "then
\n" ); document.write( "2 - 1.6 = .4 liters of the 2% solution
\n" ); document.write( ":
\n" ); document.write( ":
\n" ); document.write( "You can check these solutions in the original equation
\n" ); document.write( ".08(1.6) + .02(.4) = .068(2)
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