A parsec, a unit of length used in astronomy, is
1.9 times 10 Superscript 131.9×1013
miles. The mean distance of a certain planet from the sun is
1.2 times 10 Superscript 91.2×109
miles. How many parsecs is this planet from the sun?
Just divide:
[1.2 x 10^9] / [1.9 x 10^13] =6.316 x 10^-5 parsecs =1/15,833 of a parsec.
