Mathematics, 29.09.2020 14:01 Jgrant500

In some distant part of the universe, there is a star with 4 orbiting planets. One planet takes a trip around the star in 6 earth years, another in 9 years, another in 15 years, and the final one in 18 years. At some time, all the planets are aligned in a straight line. Scientists call this alignment a conjunction. How many earth years will pass until the planets are lined up again? I REALLY NEED SOME HELP

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In some distant part of the universe, there is a star with 4 orbiting planets. One planet takes a tr...