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ShìnshìàSabaku
ShìnshìàSabaku ShìnshìàSabaku
  • 26-01-2017
  • Mathematics
Answered

Unit rate with complex fraction:


If 4/5 of a candle burns in 1 1/3 hours how many hours will it take for the candle to be completely burned down?

It takes _____ _____ to burn 1 ___

Verified Answer :

texaschic101
texaschic101 texaschic101
  • 26-01-2017

(4/5) / (1 1/3) = 1 / x.......4/5 burns in 1 1/3 hr = 1 burns in x hrs
(4/5) / (4/3) = 1/x .....turn mixed number to improper fraction
cross multiply
(4/5)(x) = (4/3)(1)
4/5x = 4/3
x = 4/3 * 5/4
x = 20/12 = 1 2/3

so it takes 1 2/3 hrs to burn 1 candle

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