Question

the table shown below gives the approximate distance from the sun for a few different planets. how much further (in km) from the sun is saturn than venus? express your answer in scientific notation. planet approximate distance from the sun (in km) mercury 5.8·10^7 venus 1.1·10^8 earth 1.5·10^8 saturn 1.4·10^9 uranus 3·10^9

Explanation:

Step1: Identify distances

The distance of Saturn from the sun is $1.4\times10^{9}$ km and the distance of Venus from the sun is $1.1\times 10^{8}$ km.

Step2: Make exponents the same

Rewrite $1.1\times 10^{8}$ as $0.11\times 10^{9}$ (since $1.1\times10^{8}=1.1\times\frac{10^{9}}{10}=0.11\times 10^{9}$).

Step3: Subtract the distances

$(1.4\times 10^{9})-(0.11\times 10^{9})=(1.4 - 0.11)\times10^{9}$.
$1.4- 0.11 = 1.29$. So the result is $1.29\times 10^{9}$ km.

Answer:

$1.29\times 10^{9}$ km