Answer:
The weight of one box is 6.89×10³ kilograms.
To find the total weight of 2150 identical boxes, we can multiply the weight of one box by the number of boxes:
Total weight = 2150 boxes x 6.89×10³ kilograms/box
Total weight = 1.48235×10⁷ kilograms
Therefore, the total weight of 2150 identical boxes is 1.48235×10⁷ kilograms.