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If a marble rotates 180 degrees in 9 seconds, how many does it rotate in 18 seconds.
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1 vote
If a marble rotates 180 degrees in 9 seconds, how many does it rotate in 18 seconds.

User Zegar
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2 Answers

4 votes
since 9*2=18 all you have to do is the same to 180...

180*2=360

Answer: The marble rotates 360 degrees in 18 seconds
User Szimek
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7.1k points
6 votes
It would rotate 360 degrees because 18 seconds is twice the amount of 9 seconds, so you need to multiply 180 by 2, which is 360, or one full rotation.
User Vibol
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7.2k points
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