Question

Describe a real-world situation in which opposite quantities combine to make zero.

Answer 1

Help me @agent0smith

Answer 2

How about a debt of $50 combined with a gift of $50?

Answer 3

Yeah maybe!

Answer 4

You could walk south for 5 miles and then turn around and walk north for 5 miles.

Answer 5

Can i ask another question ?

Answer 6

Sure :)

Answer 7

Describe a recent situation where you added or subtracted.

Answer 8

I checked the grocery bill by adding up the items.

Answer 9

Any deposit or withdrawal from my bank account better add up.

Answer 10

OKay

Answer 11

How is the additive inverse property used to subtract rational numbers?

Answer 12

Do you have any ideas?

Answer 13

Not a Clue! xD

Answer 14

Recall the additive inverse property $$\large a+(-a)=0$$

Answer 15

Okay

Answer 16

$$\large a+(-a)=a-a=0$$

Answer 17

That^ tells you to subtract a number you add its additive inverse.

Answer 18

Okay! But what would i write for my answer ?

Answer 19

$$\large\dfrac{a}{c}-\dfrac{b}{c}=\dfrac{a-b}{c}=\dfrac{a+(-b)}{c}$$

Answer 20

The last step a + (-b) uses the additive inverse of b which is -b

Answer 21

To subtract b add the additive inverse of b.

Answer 22

Okay :D