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Mathematics 21 Online
OpenStudy (livielaughs):

You have four $1 bills, two $5 bills, five $10 bills, and five $20 bills in your wallet. You select a bill at random. Without replacing the bill, you choose a second bill. Find P($10, then $1). I just have a weird thing with probability stuff... please help!

OpenStudy (kiwibyrd):

first, find the fractions that represent how many 10 dollar bills and 1 dollar bills are part of the total (16)

OpenStudy (kiwibyrd):

then take those two fractions and multiply them

OpenStudy (livielaughs):

Ok

OpenStudy (kiwibyrd):

what answer did you get?

OpenStudy (livielaughs):

well I got 20/256

OpenStudy (livielaughs):

but that can be reduced to 5/64

OpenStudy (livielaughs):

THATS ALL YOU HAVE TO DO!?!? omg I understand everything now! thankyou!

OpenStudy (kiwibyrd):

great job !!

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