At the Kolbus building 3 out of every 7 employees use public transportation. There are 9,800 employees at the building. How many use public transportation?

(3/7) * 9800 = 29,400/7 = 4,200

To find out how many employees use public transportation, you can use the given information that 3 out of every 7 employees do so.

First, calculate the number of employees who use public transportation:

3/7 * 9800 = 4200

Therefore, 4,200 employees at the Kolbus building use public transportation.

To find out how many employees at the Kolbus building use public transportation, we need to calculate 3/7th of the total number of employees.

Step 1: Calculate the fraction of employees using public transportation:
3/7 = 0.4286 (rounded to four decimal places)

Step 2: Multiply the calculated fraction by the total number of employees:
0.4286 * 9,800 = 4,200

Therefore, approximately 4,200 employees at the Kolbus building use public transportation.