Answer: 10cm
Step-by-step explanation:
From the question, we are informed that Boris has a tall candle which burns down 1 cm are in 1/5 hour.
The equation that can be used to calculate the number of centimeters of the candle that will burn down in 2 hours will then be represented by x. This will then be:
1cm/x = 1/5hour / 2 hours
Cross multiply
1/5 × x = 2 × 1
1/5x = 2
x = 2 ÷ 1/5
x = 2 × 5.
x = 10
The candle will burn 10cm in 2 hours.
