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What is -90/3 ft/min ?
average anything= total change/total time
average anything= total change/total time
Given that the diver's vertical position changes by -90 feet in 3 minutes, we can calculate the average change per minute as follows:
Average change per minute = Total change / Total time
Total change = -90 feet
Total time = 3 minutes
Average change per minute = -90 feet / 3 minutes
Average change per minute = -30 feet/minute
Therefore, the average change in the diver's vertical position each minute is -30 feet.