An empty dump truck weighs about 2.8×105 pounds. How much does it weigh if 15,300 pounds of trash is added? The answer should be in scientific notation.

To calculate the total weight of the dump truck when 15,300 pounds of trash is added, we need to add the weight of the trash to the weight of the empty dump truck:

Weight of empty dump truck = 2.8×10^5 pounds
Weight of trash = 15,300 pounds

Total weight of dump truck with trash = Weight of empty dump truck + Weight of trash

Total weight = 2.8×10^5 pounds + 15,300 pounds

Total weight = 2.8×10^5 pounds + 1.53×10^4 pounds

Total weight = (2.8 + 1.53) × 10^5 pounds

Total weight = 4.33 × 10^5 pounds

Therefore, the weight of the dump truck with 15,300 pounds of trash added is 4.33×10^5 pounds.