10m3 of air weigh 13 kg. chapter reference c how much does the air weigh in a room 4.2m long, 3.5m wide, and 2.6m high?

The air weight in a room is 49.69 kg.

Step-by-step explanation:

It is given that the room is 4.2m long, 3.5m wide, and 2.6m high. It is also given that 10 m³ of air weigh 13 kg.

The formula to find the volume of cuboid is,

The volume of room is 38.22 m³.

Since it is given that, 10 m³ of air weigh 13 kg. So,

So the air weight in the room is,

Therefore the air weight in a room is 49.69 kg.

exa:

)

3+11

14

step-by-step explanation:

from this example, we can see that subtracting with integers is the same as adding the opposite. we can solve using a number line or by using the saying "keep, change, change" to us solve. it is important to remember that we can subtract a negative and end up with a larger number than we started with.