College Algebra Chapter 1/Section 2 [ATTACH=full]3821[/ATTACH] For 159. There 3600 seconds in one hour. There are 24 hours in one day. So, 3600 x 24 or 86,400 seconds in one day. In 365 days, there are 31,536,000 seconds. 186,000 miles/m = 1 second/(31,536,000) Let m = miles in one light year Is this the correct set up? For 160 The speed of light is 3.00 x 10^(8) miles per second. I say (distance Sun is from Earth)/(speed of light). Is this the correct set up?