Amachine can fill a box with twenty pencils in 30 seconds. how many boxes can the machine fill in 2 hours?

use conversion:

1 hour = 3600 seconds.

As per the given statement:

A machine can fill a box with twenty pencils in 30 seconds.

Number of pencils = 20

Time = 30 seconds = hours.

then by definition of unit rate;

we have to find the number of boxes can the machine fill in 2 hours.

Substitute the given values we have;

it is given that:

20 pencils fill = 1 box

4800 pencils fill = 240 boxes

Therefore, 240 boxes can the machine fill with 4800 pencils  in 2 hours

false.

step-by-step explanation:

false.

cavalieri's principle makes that statement about the volumes, not about the areas.