Question

Maggie used the commutative property to write 4/5+6.9y-8 as the equivalent expression 6.9y+8-4/5. Did Maggie apply the commutative property correctly? Why or why not?

Answer 1

C. No, some of the terms changed signs

Explanation:

i got it right on my test

Answer 2

Answer: No.

Explanation:

The commutative property of addition tells that it does not matter if we change the order of the addends , the sum remains the same.

Actual expression
`(4)/(5)+6.9y-8`

Rewrite this by using only + sign as

`(4)/(5)+6.9y+(-8)`

We can see that the first term is
`(4)/(5)` not
`(-4)/(5)` and the last term is -8 not 8.

⇒ Maggie changed the signs of the numbers.

Hence Maggie didn't apply the commutative property correctly .