Question

This distance from the Earth to the Sun given above is a standard for measuring other distances in the solar system and is called an Astronomical Unit or AU. 1AU=_________miles. Write this as a ratio:_________

Answer 1

Answer:

The Astronomical Unit (AU) is approximately $92.96\times 10^{6}\,mi$, the ratio of Astronomical Units per mile is $r = 1\,AU\,:\,92.96\times 10^{6}\,mi$.

Explanation:

The distance from the Earth to the Sun is approximately $92.96\times 10^{6}\,mi$, then the Astronomical Unit (AU) is approximately $92.96\times 10^{6}\,mi$. The ratio can be described by the quantity of miles per Astronomical Unit, then we define:

$r = 1\,AU\,:\,92.96\times 10^{6}\,mi$.