document.write( "Question 1037557: How many liters of water should be added to 3 liters of a 70 percent alcohol solution to obtain a 50 percent solution \n" ); document.write( "

Algebra.Com's Answer #652159 by ikleyn(52784) $\"\"$ $\"About$

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document.write( " = 0.5     (\"alcohol percentage contents\" equation)\r\n" );
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document.write( "3*0.7 = 0.5*(3 + w),\r\n" );
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document.write( "2.1 = 1.5 + 0.5w,\r\n" );
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document.write( "0.5w = 2.1 -1.5,\r\n" );
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document.write( "0.5w = 0.6   --->  w =  = 1.2.\r\n" );
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document.write( "Answer.  1.2 liters of water.\r\n" );
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