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Brrunno [24]
3 years ago
10

Area codes have three digits. The first digit must not be 0 or 1, the middle digit must be 0 or 1, and the last digit must not b

e 0. How many different area codes are possible?
Mathematics
1 answer:
disa [49]3 years ago
4 0
There are 10 digits 0 1 2 3 4 5 6 7 8 9 if we can't use 0 and 1 then there are only 8 choices for the first digit and only 2 choices for the second digit and 10 for the third so there are 8*2*10 =160 possibilities. I think ???
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