The average distance from earth Earth to Mars is 2.25 times 10^8 km, and the distance from Earth to Neptune is 4.3514 times 10^9 km. How much farther is Neptune from Earth than Mars? Express your answer in scientific notation. Do not round your answer.

Answer 1

To find how much farther Neptune is from Earth than Mars, we subtract the distance from Earth to Mars from the distance from Earth to Neptune.

(4.3514 * 10^9 km) - (2.25 * 10^8 km)
= 4.3514 * 10^9 km - 2.25 * 10^8 km
= 4.3514 * 10^9 km - 0.225 * 10^9 km
= 4.1264 * 10^9 km

Therefore, Neptune is 4.1264 * 10^9 km farther from Earth than Mars.