Concept explainers
Light travels at a speed of about 300,000 kilometers per second. The distance that light travels in 1 year is called a light year. The star Alpha Centauri is 4.34 light years from earth. How many years would it take a rocket traveling at 6000 kilometers per hour to reach Alpha Centauri? Solve this problem, and explain how you use the meanings of multiplication and division in solving it.
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