Question

The mass of an empty jar is 400 g.
When filled with cookies, its mass is 1200 g.
What is the mass of the cookies?​

Answer 1

Answer:

Ok

Step-by-step explanation:

So,

Mass of empty jar= 400g

Mass of jar when filled with cookies=1200g

Mass of cookies=?

1200-400

=800

Therefore, the mass of the cookies is 800g

To Check=

Mass of jar filled with cookies=1200g

So, 400+800=1200

1200=1200

Therefore, the mass of the cookies is 800g.

Answer 2

Answer:

800 is the mass of cookies in the jar