scottfl017ovix7i scottfl017ovix7i

19-10-2017
Mathematics

contestada

In a video game, a character needs to shine a light through two spinning wheels that have holes in them.The first wheel makes a complete rotation in 7 seconds.The second wheel makes a complete rotation in 9 seconds.The hole are lined up at 0 seconds.How many seconds will pass before they are lined up again?

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loverara11 loverara11

19-10-2017

63 seconds

they would have to rotate until they became equal so one would rotate 7 times and one would rotate 9 times.

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