after selling some old books and toys Gwen and her brother max had 5 dollar bill and 6 quarters and 8 dimes what is the total am
2 answers:
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Answer:
postcodes
Step-by-step explanation:
Think of the post code as a combination lock
[?] [?] [?] [?] [?] [?]
If letters a numbers are allowed, each character can be A-Z and 0-9.
There are 26 letters, and 10 different digits
26 + 10 = 36 characters
Each block (I illustrated above) can be any of the 36 characters
If you have 2 blocks, you have a combination of
36 x 36 characters — which is the same as
With 3 blocks:
and so forth...
If your post code is made of 6 'blocks' it can be any combination of