document.write( "Question 1178539: A jar contains 17 one dollar bills and 8 five dollar bills.\r
\n" ); document.write( "\n" ); document.write( "A. If you reach in and grab two bills without looking what is the probability that both are one dollar bills?\r
\n" ); document.write( "\n" ); document.write( "B. If your reach in and grab two bills without looking, what is the probability that you get one of each bill.\r
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Algebra.Com's Answer #807829 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( " jar contains  25 bills: 17 one dollar bills and 8 five dollar bills\r\n" );
document.write( "grab two bills\r\n" );
document.write( "P(2 ones) = 17C2/25C2= 136/300 = .4533   | =  \r\n" );
document.write( "P(I OF EACH) = (17C1)(8C1)/(25C2) = 17*8/300 = 136/300 = .4533\r\n" );
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document.write( "Had the numbers been:  25   16 one dollar bills and 9 five dollar bills:\r\n" );
document.write( "P(20nes) = 16C2/300 = 120/300  |16C2 = 8*15\r\n" );
document.write( "P(I OF EACH) = 16*9/300 = 144/300\r\n" );
document.write( "IN the previous case:  numerator in both cases = 136\r\n" );
document.write( "Wish You the Best in your Studies.\r\n" );
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