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2 votes
What multiple of 9 is a factor of 9

User Imarban
by
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2 Answers

2 votes

Answer:

( 1 ), ( 3 ), ( 9 )

Explanation:

Every time you add one to a digit (which is the same as adding 10, 100, 1000, etc) you get a number that is one more than a multiple of 9, so you have to subtract one from the number, which brings the sum of the digits back to 9.

User Sawan Chauhan
by
8.6k points
2 votes

Answer:

9

Explanation:

User Kirschstein
by
8.6k points

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