anonymous
  • anonymous
a firefighter is standing on the middle rung of a ladder.she moved up 9 rungs.the smoke got worse.so she moved back down 13 rungs when the smoke cleared she wentup 19 rungs to the top how many rungs does the ladder have? Dales solution is 45 rungs laura solution is 31 rungs who is correct and why.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
I know It is 31 rungs but i need to explain how i got 31 Can i get a grade 8 answer plz
goformit100
  • goformit100
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anonymous
  • anonymous
IDK

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anonymous
  • anonymous
Quoted from @JamesJ "Let x = number of rungs. Then by the logic I wrote for you when I answered this question before: (x+1)/2 + 9 - 13 + 19 = x => (x-1)/2 = 15 => x = 31"

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