Question

Is the set of multiples of 6 closed under subtraction? Explain why or provide a counterexample if not.
A. Yes, because the difference of any two multiples of 6 is equal to 6.
B. Yes, because the difference of any two multiples of 6 is also a multiple of 6.
C. No, and a counterexample is 6 – 6 = 0.
D. No, and a counterexample is 6 – 18 = –12.

@Haseeb96 @Punkchick @LazyBoy @satellite73 please help fan and medal.

Answer 1

I think its A but I would double check

Answer 2

k

Answer 3

no - not A because for example 36-12 = 24

Answer 4

@cwrw238 is it b?

Answer 5

@Lissa1199 do you think I'm right?

Answer 6

I don't know I will look it up

Answer 7

yes its b

Answer 8

to be honest I'm not sure whether 6 is classed as a multiple of 6 or not. If it is then the answer is c If not then the answer is b

Answer 9

i have forgotten a lot of this stuff
can you for example include 12-12 as a subtraction ??

Answer 10

look here @Wolfie_GirlRocks2002
here Question is saying that the multiple of 6 is closed under subtraction ?
look here i take two multiple number of 6
a) 12 b) 18
when we subtract 18-12=6
so 6 is also the multiple of 6
if a) 18 and b) 6
18-6=12
12 is also the multiple of 6
so 6 is closed under subtraction
So the correct answer is B

Answer 11

we cant do that because in multiple of any number we never take 0

Answer 12

6 x 0 =0
it is also the multiple of 6

Answer 13

@cwrw238

Answer 14

oh ok

Answer 15

thanks dear