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Mathematics 15 Online
OpenStudy (anonymous):

5 men and 7 women are going to be assigned seats in the theather. if the 12 tickets are given out at ramdom, find the prob that 5 women are given the first 5 seats next to the center aisle

OpenStudy (anonymous):

You need to do part over total so ..... Part= 5 women Total= 12 seats

OpenStudy (anonymous):

so 5 over 12?

OpenStudy (anonymous):

hello?

OpenStudy (dumbcow):

use combinations 7C5/12C5

OpenStudy (anonymous):

7*6*5*4*3 which is 2520 then 12*11*10*9*8 which is 95040

OpenStudy (anonymous):

so now How would I simplify the problem?

OpenStudy (dumbcow):

good use calculator to divide 2520/95040 = .0265 or you could reduce the fraction

OpenStudy (anonymous):

Ok so to reduce the fraction U would do 2520 devide by 2

OpenStudy (dumbcow):

cross things out on top and bottom 7*6*5*4*3 _____________ 12*11*10*9*8 3/9 reduces to 1/3 4/8 reduces to 1/2 5/10 reduces to 1/2 6/12 reduces to 1/2 leaving... 7 ____________ 2*11*2*2*3

OpenStudy (anonymous):

7/264?

OpenStudy (dumbcow):

correct,

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