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. (1 point)

Question

O 2.953 × 105 pounds
O 4.33 × 105 pounds
O 15,302.8 pounds
O 29,530 pounds

Answer 1

To find the total weight of the dump truck after adding 15,300 pounds of trash, we need to add the weight of the trash to the weight of the empty dump truck.

Total weight = Empty dump truck weight + Weight of trash
Total weight = 2.8 × 105 pounds + 15,300 pounds

Combining the numbers in scientific notation:
Total weight = 2.8 × 105 pounds + 1.53 × 104 pounds

Adding the numbers:
Total weight = 29.53 × 104 pounds

In scientific notation, this can be written as:
Total weight = 2.953 × 105 pounds

So, the correct answer is O 2.953 × 105 pounds.