Use least common multiple or greatest common divisor to solve the problem. Planets A, B, and C orbit a certain star once every 3, 5, and 18 months, respectively. If the three planets are now in the same straight line, what is the smallest number of months that must pass before they line up again? 270 months 90 months 54 months 26 months

Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter4: Polynomials
Section: Chapter Questions
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Use least common multiple or greatest common divisor to solve the problem.
Planets A, B, and C orbit a certain star once every 3, 5, and 18 months, respectively. If the three
planets are now in the same straight line, what is the smallest number of months that must pass
before they line up again?
270 months
90 months
54 months
26 months
Transcribed Image Text:Use least common multiple or greatest common divisor to solve the problem. Planets A, B, and C orbit a certain star once every 3, 5, and 18 months, respectively. If the three planets are now in the same straight line, what is the smallest number of months that must pass before they line up again? 270 months 90 months 54 months 26 months
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