Answer: 4.133 kilometers
Step-by-step explanation:
From the question, we are informed that walkway over the hudson, a bridge that crosses the hudson river in poughkeepsie, is 2.063 kilograms long and that Anping bridge, which was built in china 850 years ago, is 2.07 kilograms long.
The total span of both bridges will be the addition of both walkway. This will be:
= 2.063 kilometers + 2.07 kilometers
= 4.133 kilometers
