document.write( "Question 311251: A bowl contains only red and black marbles.There are x red marbles, with 2 more black marbles than red. If a marble is selected at random, what is the probability that it will be black?\r
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document.write( "a 2/x b x/(x+2) c x/(2x+2) d (x+2)/(2x+2) e 2/(x+2) \n" );
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Algebra.Com's Answer #222655 by Fombitz(32388) You can put this solution on YOUR website! Red, R-x marbles \n" ); document.write( "Black, B-x+2 marbles \n" ); document.write( "Total, 2x+2 marbles \n" ); document.write( "P(B)=(x+2)/(2x+2) \n" ); document.write( "d) is the correct answer \n" ); document.write( " |