9514 1404 393
Answer:
22. yes
23. is divisible by 9
Step-by-step explanation:
A number is divisible by 9 if the sum of its digits is divisible by 9. The process of reducing the sum of digits to a single digit is called "casting out nines." It can be a useful process for checking arithmetic of all sorts.
A number is divisible by 3 if the sum of its digits is divisible by 3.
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22. 114 is divisible by 3 because 1+1+4 = 6, a number divisible by 3. Everyone will have a spot.
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24. 2187 has a sum of digits of 2+1+8+7 = 18, which has a sum of digits of 1+8=9. This is divisible by 9, so 2187 is divisible by 9.
