document.write( "Question 1047306: Problem Page
\n" ); document.write( "In the lab, Heather has two solutions that contain alcohol and is mixing them with each other. She uses
\n" ); document.write( "500
\n" ); document.write( " milliliters less of Solution A than Solution B. Solution A is
\n" ); document.write( "17%
\n" ); document.write( " alcohol and Solution B is
\n" ); document.write( "11%
\n" ); document.write( " alcohol. How many milliliters of Solution A does she use, if the resulting mixture has
\n" ); document.write( "167
\n" ); document.write( " milliliters of pure alcohol?
\n" ); document.write( "
\n" ); document.write( "

Algebra.Com's Answer #662837 by ankor@dixie-net.com(22740)\"\" \"About 
You can put this solution on YOUR website!
In the lab, Heather has two solutions that contain alcohol and is mixing them with each other.
\n" ); document.write( "She uses 500 milliliters less of Solution A than Solution B.
\n" ); document.write( " Solution A is 17% alcohol and
\n" ); document.write( " Solution B is 11% alcohol.
\n" ); document.write( " How many milliliters of Solution A does she use, if the resulting mixture has
\n" ); document.write( "167 milliliters of pure alcohol?
\n" ); document.write( ":
\n" ); document.write( "a = amt of A solution
\n" ); document.write( "b = amt of B solution
\n" ); document.write( "\"500 milliliters less of Solution A than Solution B.\"
\n" ); document.write( "a = b - 500
\n" ); document.write( ":
\n" ); document.write( "A mixture equation
\n" ); document.write( ".17a + .11b = 167
\n" ); document.write( "Replace a with (b-500)
\n" ); document.write( ".17(b-500) + .11b = 167
\n" ); document.write( ".17b - 85 + .11b = 167
\n" ); document.write( ".17b + .11b = 167 + 85
\n" ); document.write( ".28b = 252
\n" ); document.write( "b = 252/,28
\n" ); document.write( "b = 900 ml of B solution used
\n" ); document.write( "therefore
\n" ); document.write( "900 - 500 = 400 ml of A solution
\n" ); document.write( ":
\n" ); document.write( ";
\n" ); document.write( "Check by finding the actual amt of alcohol in each
\n" ); document.write( ".17(400) = 68 ml
\n" ); document.write( ".11(900) = 99
\n" ); document.write( "------------------------
\n" ); document.write( "total alcohol: 167 mo
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