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Algebra 13 Online
OpenStudy (anonymous):

The houses on your street are numbered with odd numbers starting with 1 and ending with 201. How many house numbers contain at least one 7?

OpenStudy (anonymous):

it 38

OpenStudy (anonymous):

are you going to explain that at all? @eulie

OpenStudy (anonymous):

um yess. well i really dont kno how to explain it honestly @NickR

OpenStudy (anonymous):

7, 17,27,37,47,57,67,70,71,72,73,74,75,76,77,78,79,87,97....and keep going... titurns out to be 38

OpenStudy (anonymous):

It's not 38 it's 30.

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