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A 6-inch candle burns down in 8 hours. Assuming the candles are the same thickness and make (that is, directly proportional), how long would it take a 8 1/4 inch candle to burn down?

Sagot :

Answer: 11 hours

Step-by-step explanation: The ratio of the candle height and how long it takes to burn down is 6:8. To find the unit rate, divide 8 by 6, to get 4/3. 4/3 is the unit rate. To find how long it takes the 8 1/4 inch candle to burn down, multiply it by 4/3 to get 11.

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