The clock was exactly on time at 7 am. At 1 pm, the clock was 228 seconds late. At that rate how slow was the clock after half an hour?

19 seconds.

Step-by-step explanation:

given that the clock was exactly on time at 7am, and at 1pm the clock was 228 seconds late, to determine, at that rate, how slow was the clock half an hour, the following calculation must be performed:

1 PM = 13:00

13 - 7 = 6

228/6 = 38

38/2 = 19

2.45 g/cm3

Step-by-step explanation:

It's a cube, so all the side lengths are the same. It's volume is = .

At this point, we apply the definition of density where m is the mass and V the volume.