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26 March, 02:56

A 20-ounce candle is expected to burn for 60 hours. A 12-ounce candle is expected to burn for 36 hours. Assuming the variables are directly related, how many hours would a 9-ounce candle be expected to burn? 18

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  1. 26 March, 03:57
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    It appears that the ounces tripled equals the hours that the candle can burn. 20 times 3 is 60, 12 times 3 is 36, so multiply 9 by 3 and you will have your answer.
  2. 26 March, 05:16
    0
    Because the ratio for both candles is 20/60 or 1/3 then take the number of ounces the candle has and divide by 1/3. In expression: 9 / 1/3 = > 9 * 3 = 18
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