An empty dump truck weighs about 2.8×10^5 pounds. How much does it weigh if 15,300 pounds of trash is added? The answer should be in scientific notation

Answer 1

The weight of the empty dump truck is 2.8 × 10^5 pounds.

When 15,300 pounds of trash is added, the total weight is the sum of the empty truck weight and the weight of the trash:

2.8 × 10^5 + 1.53 × 10^4 = 2.8 × 10^5 + 1.53 × 10^4 = 2.95 × 10^5 pounds.

Therefore, the dump truck weighs 2.95 × 10^5 pounds when 15,300 pounds of trash is added.