document.write( "Question 1053307: how many ounces of a 100% juice concentrate must be added to a 20% juice concentrate to yield 128 ounces of a 50% juice \n" ); document.write( "
Algebra.Com's Answer #668552 by ikleyn(52786)\"\" \"About 
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\n" ); document.write( "how many ounces of a 100% juice concentrate must be added to a 20% juice concentrate to yield 128 ounces of a 50% juice
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\n" ); document.write( "\n" ); document.write( "Solution 1. Two equations\r
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document.write( "x +    y = 128,       (1)   (x is the volume of the 100% juice)\r\n" );
document.write( "x + 0.2y = 0.5*128.   (2)\r\n" );
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document.write( "Simplify\r\n" );
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document.write( "x +    y = 128,       (1)\r\n" );
document.write( "x + 0.2y =  64.       (2)\r\n" );
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document.write( "To solve it, distract (2) from (1). You will get\r\n" );
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document.write( "0.8y = 128-64  --->  0.8y = 64.\r\n" );
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document.write( "From this point, please complete the solution on your own.\r\n" );
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\n" ); document.write( "\n" ); document.write( "Solution 2. One equation\r
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document.write( "x + 0.5(128-x) = 0.5*128.    (x is the volume of the 100% juice)\r\n" );
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document.write( "Simplify and solve for x.\r\n" );
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