College Algebra \nChapter 1/Section 2\n\n\n[ATTACH=full]3821[/ATTACH]\n\nFor 159.\n\nThere 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. \n\n186,000 miles/m = 1 second/(31,536,000)\n\nLet m = miles in one light year\n\nIs this the correct set up?\n\nFor 160\n\nThe speed of light is 3.00 x 10^(8) miles per second.\n\nI say (distance Sun is from Earth)/(speed of light).\n\nIs this the correct set up?