A skyscraper has a mass of 2.2 × 10⁵ 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.
We can add the masses of the two skyscrapers together to find the combined mass.
2.2 × 10⁵ tons + 3.7 × 10⁵ tons = (2.2 + 3.7) × 10⁵ tons
Adding the coefficients gives us 5.9 × 10⁵ tons.
Therefore, the combined mass of the two skyscrapers is 5.9 × 10⁵ tons.
A certain insect is approximately 4 × 10^-2 inches long. A second insect is about 1.3 × 10^-1 inches long. What is the total length of the two insects in inches? Use scientific notation to express your answer to 1 decimal place.
We can add the lengths of the two insects together to find the total length.
4 × 10⁻² inches + 1.3 × 10⁻¹ inches = (4 + 1.3) × 10⁻² inches
Adding the coefficients gives us 5.3 × 10⁻² inches.
Therefore, the total length of the two insects is 5.3 × 10⁻² inches.
Wrong
To find the total length of the two insects, we need to add their lengths together.
4 × 10^-2 inches + 1.3 × 10^-1 inches = 0.04 inches + 0.13 inches = 0.17 inches
Therefore, the total length of the two insects is 0.17 inches.
To find the combined mass of the two skyscrapers, we need to add their masses together.
The first skyscraper has a mass of 2.2 × 10⁵ tons.
The second skyscraper has a mass of 3.7 × 10⁵ tons.
To add these two masses together, we add the numerical parts separate from the exponential parts. Adding 2.2 and 3.7 gives us 5.9.
Then, since both masses are in scientific notation, we need to multiply the numerical part (5.9) by 10 raised to the sum of their exponent parts (5 + 5), which equals 1 × 10¹.
So, the combined mass of the two skyscrapers is 5.9 × 10¹ tons.
To find the combined mass of the two skyscrapers, we simply need to add their individual masses together.
The first skyscraper has a mass of 2.2 × 10⁵ tons, and the second skyscraper has a mass of 3.7 × 10⁵ tons. To add these values, we'll first convert them into regular decimal form.
2.2 × 10⁵ tons = 2.2 * 10^(5) tons = 2.2 * 100,000 tons = 220,000 tons
3.7 × 10⁵ tons = 3.7 * 10^(5) tons = 3.7 * 100,000 tons = 370,000 tons
Now that we have the decimal values, we can add them together:
220,000 tons + 370,000 tons = 590,000 tons
So, the combined mass of the two skyscrapers is 590,000 tons.