document.write( "Question 419763: a jar contains 7 green, 19 black and 13 pik marbles. A marble is drawn at random. What is the probability of it being a green or black? \n" ); document.write( "

Algebra.Com's Answer #293461 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi
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document.write( "a jar contains 7 green, 19 black and 13 pink marbles.
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document.write( " 39 marbles in ALL
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document.write( "ONE marble is drawn at random. 
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document.write( "P(being a green 'or' black) = 7/39 + 19/39 = 26/39 \n" );
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