document.write( "Question 587136: A box contains 5 white balls, 3 black balls, and 2 red balls.
\n" ); document.write( "A-What is the probability of drawing a white ball?
\n" ); document.write( "B- How many white balls must be added to the box so that the probability of drawing a white ball is 3/4?
\n" ); document.write( "C-How many black balls must be added to the original assortment so that the probability of drawing a white ball is 1/4?
\n" ); document.write( "Please help me with this!
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Algebra.Com's Answer #434732 by filboi(35)\"\" \"About 
You can put this solution on YOUR website!
The solution for C is not similar to B.
\n" ); document.write( "Here's the solution:\r
\n" ); document.write( "\n" ); document.write( "C. (5)/(10+x) = 1/4
\n" ); document.write( "10 + x = 20
\n" ); document.write( "x=10\r
\n" ); document.write( "\n" ); document.write( "10 black balls must be added so that the probability of drawing a white ball is 1/4.
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