Respuesta :

irspow
Since order is important, this is a problem solved by:

n!/(n-k)!, where n=total choices available, k=number of choices made.

10!/(10-3)!

10!/7!

720


caraugpar2cap2

720. just multiply 10 9 and 8 because  first, second, and third, that is means three and that's how many numbers you multiply from 10,so it equals 720.


hope this helps

cheers! 

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