How do you convert lightyears into miles?

I know that 1.42 lightyears = 8.34746974 × 10^12 miles but how do I get that answer? How do I show my work?

Top 2 Answers

A few days ago

Ralfcoder

Favorite Answer

multiply 186,282 (miles that light travels in 1 second) * M * H * D * Y, where:

M = # of seconds in a minute

H = # of minutes in an hour

D = # of hours in a day

Y = # of days in a year

Then express as scientific notation.

A few days ago

peacecorpsrefugee

Divide both sides by 1.42, hence, 1 lightyear = that number divided by 1.42

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