document.write( "Question 1210325: A bag contains 8 red balls and some white balls, all of the same size. If the probability of drawing at random a white ball from the bag is half the probability of drawing a red ball, find the number of white balls in the bag \n" ); document.write( "

Algebra.Com's Answer #851890 by Edwin McCravy(20060) $\"\"$ $\"About$

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document.write( "You could just think out that there would have to be only half as many\r\n" );
document.write( "white balls as red balls, and half of 8 is 4. \r\n" );
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document.write( "Otherwise,\r\n" );
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document.write( "...A bag contains 8 red balls and some white balls, all of the same size....\r\n" );
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document.write( "There are 8 red balls and N white balls\r\n" );
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document.write( "There are N+8 balls in the bag.\r\n" );
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document.write( "The probability of drawing a red ball is 8 out od N+8 or\r\n" );
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document.write( "The probability of drawing a white ball is N out of N+8 or\r\n" );
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document.write( "...If the probability of drawing at random a white ball from the bag is half\r\n" );
document.write( "the probability of drawing a red ball,...\r\n" );
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document.write( "Go to https://www.wolframalpha.com/\r\n" );
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document.write( "Type in N/(N+8) = (1/2)(8/(N+8))\r\n" );
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document.write( "Press ENTER\r\n" );
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document.write( "See N = 4, so there are 4 white balls in the bag.\r\n" );
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document.write( "Edwin

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