Question

Suppose that the height (in centimeters) of a candle is a linear function of the amount of time (in hours) it has been burning. After 9 hours of burning, candle has a height of 19.5 centimeters. After 27 hours of burning, its height is 10.5 centimeters. What is the height of the candle after 19 hours? Candle height (in cm) Burning time (in hours) centimeters X 3​

Answer 1

Explanation:

in 9 hrs =19.5

in 27 hrs =10.5

so in a difference of 18 hrs = 9cm

what about 10 hrs(i.e; 19-9)? = 10×9/18

. = 5 cm

19.5 - 5 = 14.5

Answer = 14.5cm