document.write( "Question 911536: An urn contains 40 balls. Some are red balls and the rest are white balls.\r
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document.write( "If the probability of extracting a white ball is 0.675, how many white balls are there?\r
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document.write( "How do I do this question? Help please.\r
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document.write( "Thank you. \n" );
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Algebra.Com's Answer #553152 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! An urn contains 40 balls. Some are red balls and the rest are white balls. \n" ); document.write( "If the probability of extracting a white ball is 0.675, how many white balls are there? \n" ); document.write( " ------ \n" ); document.write( "Use a proportion:: \n" ); document.write( "x/40 = 675/1000 \n" ); document.write( "x = 40*0.675 \n" ); document.write( "x = 27 \n" ); document.write( "--------------- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "--------------- \n" ); document.write( " |