a skyscraper has a mass of 2,2 X 10^5 tons. another skyscRaper has a mass of 3.7 X 10^5. what is the combined mass in tons of the two skyscrapers. use scientific notion to express your answer to 1 decimal place

Answer 1

To find the combined mass of the two skyscrapers, you simply add their masses together:

1. First skyscraper: \( 2.2 \times 10^5 \) tons
2. Second skyscraper: \( 3.7 \times 10^5 \) tons

Now, adding the two:

\[ (2.2 \times 10^5) + (3.7 \times 10^5) = (2.2 + 3.7) \times 10^5 = 5.9 \times 10^5 \text{ tons} \]

The combined mass of the two skyscrapers is \( 5.9 \times 10^5 \) tons.