The average distance from Earth to Mars is 2.25×108 km, and the distance from Earth to Neptune is 4.3514×109 km. How much farther is Neptune from Earth than Mars? Express your answer in scientific notation. Do not round your answer.(1 point)
km
To find the difference between the distances to Neptune and Mars, we subtract the distance to Mars from the distance to Neptune:
4.3514×10^9 km - 2.25×10^8 km
To subtract these numbers, we have to make sure the exponents are the same. We can do this by expressing 2.25×10^8 km as 2.25×10^9 km.
So the calculation becomes:
4.3514×10^9 km - 2.25×10^9 km
Now we can subtract the numbers:
4.3514 - 2.25 = 2.1014
Therefore, the difference between Neptune and Mars is 2.1014×10^9 km.
To find out how much farther Neptune is from Earth than Mars, we need to calculate the difference between their distances.
The distance from Earth to Mars is 2.25 × 10^8 km.
The distance from Earth to Neptune is 4.3514 × 10^9 km.
To find the difference, we subtract the distance to Mars from the distance to Neptune:
4.3514 × 10^9 km - 2.25 × 10^8 km
Now we can subtract:
4.3514 × 10^9 - 2.25 × 10^8
To subtract these numbers, we need to have them in the same power of 10. We can rewrite the distance to Mars in scientific notation as:
2.25 × 10^8 km = 0.225 × 10^9 km
Now we can subtract:
4.3514 × 10^9 km - 0.225 × 10^9 km
To subtract, we subtract the coefficients and keep the same power of 10:
4.3514 - 0.225 = 4.1264
The power of 10 stays the same, so the final answer is:
4.1264 × 10^9 km
Therefore, Neptune is 4.1264 × 10^9 km farther from Earth than Mars.
To find the difference in distance between Neptune and Mars from Earth, we need to subtract the distance from Earth to Mars from the distance from Earth to Neptune.
The distance from Earth to Mars is 2.25×10^8 km, and the distance from Earth to Neptune is 4.3514×10^9 km.
To subtract these numbers, we align the decimal points and subtract the corresponding digits.
4.3514 × 10^9 km
- 2.25 × 10^8 km
_____________________________
4.3514 × 10^9 - 0.225 × 10^9 km
Now, we need to simplify this result. To do that, we subtract the numbers in front of the powers of 10 and keep the same power of 10.
4.3514 - 0.225 = 4.1264
Since the result is greater than 1, we adjust it to be between 1 and 10 by moving the decimal point one place to the left and increasing the power of 10 by 1.
So, 4.1264 becomes 4.1264 × 10^1.
Therefore, Neptune is 4.1264 × 10^1 km farther from Earth than Mars.