Asked by angy

can somebody help me to check my answer

Identify if the first number is divisible by the second number, and if so, the reason why.
Is 216 divisible by 3?
A. No
B. Yes, because the sum of 2 + 1 + 6 = 9, which is divisible by 3.
C. Yes, because the last digit is 6, which is divisible by 3.
i am i think it is either b or c
Answered by bobpursley
Yes, it is B or C.
Look at this one: 26. last digit is 6, not divisible by 3. So the answer is....
Answered by Damon
is 26 divisible by 3 ?????
Answered by Damon
LOL we both picked 26
well maybe 16 ?
Answered by angy
plus 6 is divisible by 3 i think
Answered by angy
what the heck the last two numbers are 16 not 26
Answered by Damon
now how about 315 ?? or 513 ??
Answered by Damon
26 and 16 KILL C
all the ones that add to 9 ?
Answered by Damon
abc = 100 a + 10 b + c
a + b + c = 9

a b c / 3 = (100/3)a + (10/3 ) b + c/3

= 331/3 a + 3 1/3 b + c/3
= (33 a + 3 b) + (1/3)(a+b+c)
well if a+b+c is divisible by 3, we are there
Answered by scott
bob and damon were trying to give you counter-examples

any number whose digits sum is divisible by 9 , is divisible by 9 (and by 3)
Answered by angy
that makes sense scott
Answered by Damon
I hope you get it now

16 and 26 end in 6. They do NOT work so c is NO
However I just proved that b works
Answered by angy
so 26 is divisible by 3
Answered by Damon
NO, 26 is NOT divisible by 3
8 * 3 = 24
9 * 3 = 27

note
2+4 = 6 divisible by 3
2+7 = 9, divisible by 3

2 + 6 = 8 NOT divisible by 3
Answered by Conectoins acadomy .
Please just tell us what the answer is
Answered by Conectoins acadomy .
Bob so would the answer be no
Answered by fortnite
answer thx
Answered by boi
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Answered by ...
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Answered by ...
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Answered by Princess Ashley bonao
216 divisible by 8
Answered by Poppy
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Answered by idk
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Answered by / .
whats the answer to Identify if first number is divisible by the second number, and if so, the reason why.
Is 216 divisible by 3?
Answered by ...
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