tracy5450 tracy5450

27-09-2021
Mathematics

contestada

A candle loses height as it burns at a constant rate of 3cm every 12 minutes. If the intitial height of the candle is 15cm , what is the percent decrease in height after it burns for 30 minutes.?

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Debynthx Debynthx

29-09-2021

Answer:

30 mins ÷12 mins

=2.5.

2.5×3=7.5 cm

7.5-3=4.5

4.5 ×100

_____

7.5

=60%

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