Final answer:
Freeman and Eddie can swivel a combined total of 66 chairs per minute. To swivel 792 chairs at that rate, it will take them exactly 12 minutes.
Step-by-step explanation:
To determine how many minutes it will take Freeman and Eddie to swivel chairs a combined total of 792 times, we first calculate the combined rate at which they can swivel chairs. Freeman can swivel a chair 30 times per minute and Eddie can swivel a chair 36 times per minute. Using the sum of their individual rates, we can find their combined rate:
Combined rate = Freeman's rate + Eddie's rate
Combined rate = 30 swivels/minute + 36 swivels/minute
Combined rate = 66 swivels/minute
Now we'll divide the total number of swivels needed by their combined rate to find out how many minutes it will take:
Minutes to swivel 792 chairs = Total swivels / Combined rate
Minutes to swivel 792 chairs = 792 swivels / 66 swivels/minute
Minutes to swivel 792 chairs = 12 minutes
Therefore, it will take them 12 minutes to swivel chairs a combined total of 792 times.