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Mathematics 7 Online
OpenStudy (anonymous):

how many 5 digit zip codes can begin with 55?

OpenStudy (anonymous):

think, the first would be 55000 and the last would be 55999

OpenStudy (anonymous):

how would that be because the answer is supposed to be 1000

OpenStudy (anonymous):

Answer: 1,000 Reason: Since the first two digits must be a 5, then only the last 3 digits are our concern For each of the last 3 digits, there are 10 possible digits (0,1,2,3,4,5,6,7,8,9)...so 10 x 10 x 10 = 1,000

OpenStudy (anonymous):

exactly what he said.

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