Question

Rational Numbers and Expressions!

Which Property is the following

15 + (k + 4) = 15 + (4 + k)

Is it a...
Closure property of addition?
Closure property of multiplication?
Commutative property of addition?
Commutative property of multiplication?
Associative property of addition?
Associative property of multiplication?
Identity property of addition?
Identity property of multiplication?
Inverse property of addition?
Inverse property of multiplication?
or a Distributive property
or is the statement false?

(I need help. I have 12 questions and I'm having trouble)

Answer 1

Associative property of addition

Answer 2

because it doesn't matter where you put the parenthesis

Answer 3

thanks! could you help me with some more?

Answer 4

@Mehek14

Answer 5

yea sure

Answer 6

15 + (4 + k) = (15 + 4) +k

Answer 7

that's associative property of addition as well

Answer 8

Thanks!
15 - (4 - k) = (15 - 4) - k

Answer 9

choices?

Answer 10

it's the same choices

Answer 11

i don't see anything for subtraction

Answer 12

they're all addition or multiplication

Answer 13

Do you think it might be Distributive property?

Answer 14

distributive property =
5(6+3) = 30 + 15

Answer 15

so no

Answer 16

Okay I'll just mark it for reveiw. Could you still help me with the others?

Answer 17

yea

Answer 18

\[\left[ -6 * \left( -\frac{ 1 }{ 6 } \right) \right] n =1 * n\]

Answer 19

choices?

Answer 20

if it's true or false, it's true

Answer 21

I think it might be inverse property of multiplication

Answer 22

what do you think?

Answer 23

inverse property of multiplication =
\(\dfrac{7}{4}*\dfrac{4}{7}=1\)

Answer 24

So no?

Answer 25

probably

Answer 26

for the ones ur not sure, make a separate post and other people will try to help

Answer 27

Okay. Thanks for your help!

Answer 28

yw :)