document.write( "Question 824473: In the lab, Chang has two solutions that contain alcohol and is mixing them with each other. He uses 500 milliliters less of Solution A than Solution B. Solution A is 16% alcohol and Solution B is 10% alcohol. How many milliliters of Solution A does he use, if the resulting mixture has 76 milliliters of pure alcohol? \n" ); document.write( "
Algebra.Com's Answer #496525 by stanbon(75887)\"\" \"About 
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In the lab, Chang has two solutions that contain alcohol and is mixing them with each other. He uses 500 milliliters less of Solution A than Solution B. Solution A is 16% alcohol and Solution B is 10% alcohol. How many milliliters of Solution A does he use, if the resulting mixture has 76 milliliters of pure alcohol?
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\n" ); document.write( "Total amt. of liquid: x + (x-500) = 2x-500
\n" ); document.write( "Equation:
\n" ); document.write( "alch + alch = alch
\n" ); document.write( "0.16(x-500) + 0.10x = 76
\n" ); document.write( "-------
\n" ); document.write( "Multiply thru by 100
\n" ); document.write( "16x-16*500 + 10x = 100*76
\n" ); document.write( "26x = 7600+8000
\n" ); document.write( "26x = 15600
\n" ); document.write( "x = 600 ml (amt. of 10% solution needed)
\n" ); document.write( "x-500 = 100 ml (amt of 16% solution needed)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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