A skyscraper has a mass of 2.2×105

Question

tons. Another skyscraper in the same town has a mass of 3.7×105
tons. What is the combined mass, in tons, of the two skyscrapers? Use scientific notation to express your answer to 1 decimal place.(1 point)

Answer 1

To find the combined mass of the two skyscrapers, we simply add their masses together.

The masses are:

• Skyscraper 1: \(2.2 \times 10^5\) tons
• Skyscraper 2: \(3.7 \times 10^5\) tons

Now, we add them:

\[ 2.2 \times 10^5 + 3.7 \times 10^5 = (2.2 + 3.7) \times 10^5 \]

Calculating the sum inside the parentheses:

\[ 2.2 + 3.7 = 5.9 \]

Now, we can express the combined mass:

\[ 5.9 \times 10^5 \text{ tons} \]

So, the combined mass of the two skyscrapers is:

\[ \boxed{5.9 \times 10^5} \text{ tons} \]