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put this solution on YOUR website!Our galaxy is estimated to be 5.6 x 10^19 mi across. How long (in hours) would it take a spaceship to cross the galaxy traveling at 37,500 mph.
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Change to 37,500 to 3.75(10^4)
Time =

= 1.49 * 10^15 hrs
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That's about 1.7*10^11 years, a very long time