A.. If a state has license plates that use up to 6 digits, how many possible plates are there? B. If a state has license plates that can be either 3 letters followed by 3 digits or 3 digits followed by 3 letters, how many possible plates are there?
Added by Carolyn W.
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If a state has license plates that use up to 6 digits, this means that the plates can have 1, 2, 3, 4, 5, or 6 digits. Since each digit can be any number from 0 to 9, there are 10 possibilities for each digit. For a 1-digit plate, there are 10 possibilities Show more…
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