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 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.
5 answers
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.
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.
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.