document.write( "Question 142153: A jar contains 13 black and 12 red marbles. If one marble is drawn at random, what is the probability that it is black? \n" ); document.write( "
Algebra.Com's Answer #103508 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
13/25\r
\n" ); document.write( "\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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