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

Responses

2.953×105 pounds
2.953 times 10 superscript 5 baseline pounds

4.33×105 pounds
4.33 times 10 superscript 5 baseline pounds

29,530 pounds
29,530 pounds

15,302.8 pounds

Answer 1

To find the weight of the dump truck with the added trash, you need to add the weight of the trash to the weight of the empty dump truck.

Empty dump truck weight: 2.8×10^5 pounds
Added trash weight: 15,300 pounds

To add these two numbers, you align the decimal points and add the digits:

2.8×10^5
+ 1.53×10^4
_____________
2.953×10^5 pounds

So the weight of the dump truck with the added trash is 2.953×10^5 pounds.