Tapukoko17 Tapukoko17

19-12-2017
Mathematics

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Jovie is maintaining a camp fire. She has kept the fire steadily burning for 10 hours with 15 logs. She wants to know how many hours (h) she could have kept the fire going with 9 logs. She assumes all logs are the same. Which proportion could Jovie use to model this situation?

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mathmate mathmate

19-12-2017

10 hours : 15 logs
x hours : 9 logs

15*x = 9*10 => x=9*10/15=6 hours

With n logs,
x=n*10/15=2n/3 hours where n is the number of logs.

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cheesesbabies55 cheesesbabies55

21-09-2018

6 hours hope this helps you

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