Asked by lisa
the pass code to mrs.kyles alarm system is 6 digits.each can be from 0 - 6 and can only be used once.how many different combinations can mrs.kyle come up with?
Answers
Answered by
Reiny
Assuming the code may start with a zero, there are 7 digits to fill 6 spaces.
So 7*6*5*4*3*2 = 5040
So 7*6*5*4*3*2 = 5040
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