Question

The average distance from earth to mars is 2.25 x 10 8 km, and the distance from earth to Neptune is 4.3415 x 10 9 km, How much farther is Neptune from earth than Mars?

Answer 1

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

Distance from Earth to Mars: 2.25 x 10^8 km
Distance from Earth to Neptune: 4.3415 x 10^9 km

Difference in distance = Distance to Neptune - Distance to Mars
Difference in distance = 4.3415 x 10^9 km - 2.25 x 10^8 km

To subtract the numbers in scientific notation, we need to make sure the exponents are the same. In this case, we can convert the distance to Mars to scientific notation with the same exponent as the distance to Neptune:

2.25 x 10^8 km = 0.225 x 10^9 km

Now we can subtract the numbers:

Difference in distance = 4.3415 x 10^9 km - 0.225 x 10^9 km
Difference in distance = 4.1165 x 10^9 km

Therefore, Neptune is approximately 4.1165 x 10^9 km farther from Earth than Mars.