There are 1,000,000 microseconds in a second. if the length of a day on a planet increases by 1,250 microseconds
each year, by how much time, in seconds, will the length of a day on this planet increase in 25 centuries?

The day would be 3.125 seconds longer in 25 centuries.

Step-by-step explanation:

Let's break it down.

Each year, 1250 microseconds are added to the planet's day.

We need to find how long a day would be in 25 centuries.

A century is 100 years.

A second is 1,000,000 microseconds.

The day would be 3.125 seconds longer in 25 centuries.

hello! just here for points! though i wish i knew!