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23 April, 22:50

Elio makes candles that are 14 cm tall. Each candle burns 8 hours before going out. He is wondering how many hours at 21 cm tall candle will burn. How long will a 21 cm tall candle burn?

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  1. 23 April, 22:52
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    I would use ratio.

    14:8 divide 2

    7:4 times 3

    21:12

    12 hours before going out.
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