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Snezhnost [94]
3 years ago
9

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

can burn for. He assumes that the relationship between the height of a candle and number of hours it burns (h), is proportional.
Mathematics
1 answer:
MissTica3 years ago
8 0
Elio is right in assuming the relationship between the height and the hours it burns is proportional.

Find the unit rate

14 ÷ 8 = 1.75 cm/h

Divide

21 ÷ 1.75 = 12

You can set this up as an algebraic equation to check the answer.

If the candle is 21 cm tall, it will burn for 12 hours.


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Work Shown:

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