Respuesta :
Answer:
[tex]\frac{1}{4,650}\ astronomical\ unit[/tex]
or
[tex]2.15*10^{-4}\ astronomical\ unit[/tex]
Step-by-step explanation:
we know that
One astronomical unit is about 93,000,000 miles
so
using proportion
Find out how many astronomical unit represent 20,000 miles
Let
x ----> the number of astronomical unit
[tex]\frac{1}{93,000,000} =\frac{x}{20,000}\\\\x=\frac{20,000}{93,000,000}\ astronomical\ unit[/tex]
simplify
[tex]\frac{1}{4,650}\ astronomical\ unit[/tex]
or
[tex]2.15*10^{-4}\ astronomical\ unit[/tex]