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Mathematics 18 Online
OpenStudy (anonymous):

if you had 6 books, but had space on the shelf for only 3 of them, How many different arrangements of books can be made?

OpenStudy (anonymous):

16

OpenStudy (anonymous):

6 x 5 x 4

OpenStudy (anonymous):

=120

OpenStudy (anonymous):

ways

OpenStudy (anonymous):

how do you get 120? and how do you get the 5 and 4?

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