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How many multiples of 9 are between 100,000 and 100,185?

 Dec 8, 2021
 #1
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twenty

 Dec 8, 2021
 #2
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The guest below is correct, here is an explanation:

Use # of terms formula for sequences: (last - first)/common difference + 1

100008 is the first term, 100179 the last, with the sequence of multiples of 9. 

This means there are 20 

 Dec 9, 2021

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