Question

The average distance from earth to mars is 2.25x10^8km, And the distance from earth to neptune is 4.3514x10^9km. How much farther Is Neptune from Earth than Mars? Express your answer in scientific notation. Do not round your answer

Answer 1

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

Distance difference = Distance from Earth to Neptune - Distance from Earth to Mars

Distance difference = (4.3514x10^9km) - (2.25x10^8km)

Now, let's subtract the values:

Distance difference = 4.3514x10^9km - 2.25x10^8km

To subtract these values, we need to have them in the same exponent form. Let's rewrite 2.25x10^8km as 0.225x10^9km:

Distance difference = 4.3514x10^9km - 0.225x10^9km

Now we can subtract the values in front of the exponential term:

Distance difference = 4.3514 - 0.225 = 4.1264

The answer can be expressed in scientific notation as:

Distance difference = 4.1264x10^9 km

So, Neptune is 4.1264x10^9 km farther from Earth than Mars.