Distances in space are measured in light-years. The distance from Earth to a star is 6.8 × 1013 kilometers. What is the distance, in light-years, from Earth to the star (1 light-year = 9.46 × 1012 kilometers)? (5 points) 2.66 light-years 7.18 light-years 7.74 light-years 9.46 light-years
Accepted Solution
A:
I light year = 9.46 x 10¹² km
------------------------------------------------------------------------------------- Find the number of light years -------------------------------------------------------------------------------------
[tex]\text {Number of light years = } \dfrac{6.8 \times 10^{13}}{9.46 \times 10^{12}} [/tex]
[tex]\text {Number of light years = } 7.18[/tex]
------------------------------------------------------------------------------------- Answer: The distance from Earth to the star is 7.18 light-years. -------------------------------------------------------------------------------------