Question

Earth is approximately 9.3 × 107 miles from the sun. Saturn is approximately 8.87 × 108 miles from the sun. About how much farther is Saturn from the sun than Earth is?

Answers-
A)7.94 × 10 7 miles

B) 7.94 × 10 8 miles

C) 4.3 × 10 7 miles

D) 4.3 × 10 8 miles

Answer 1

B) 7.94 × 10 8 miles

Explanation:

Given

Distance between Earth and sun=E=9.3* 〖10〗^7 Miles

Distance Between Saturn and Sun=S=8.87* 〖10〗^8 Miles

In order to find the distance between Earth and Saturn, we have to subtract the distance between earth and sun from the distance between Saturn and sun. So

Distance between Earth and Saturn=S-E

=(8.87* 10^8 )-( 9.3* 10^7 )

As the distances are in scientific notation, to perform subtraction, the powers of 10 in both quantities have to be same, so

=(8.87*10* 10^7 )-(9.3* 10^7 )

=(88.7* 10^7 )-(9.3* 10^7)

=79.4* 10^7 Miles

It can also be written as:

Distance between Earth and Saturn=7.94* 10^8 Miles ..