SOLUTION: If a candle burns at 2.5 mm a hour and its 20cm long. How long would it take to burn out in hours?
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Question 990991: If a candle burns at 2.5 mm a hour and its 20cm long. How long would it take to burn out in hours?
Answer by ikleyn(52814) (Show Source): You can put this solution on YOUR website!
.
2.5 mm = 0.25 cm.
Proportion:
= .
It gives
x = = 80 hours.
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