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Answer:
The remaining length of the candle varies from 8 inches to 4.5 inches.
The required expression is:
Where, b represents the burned length and r represents the remaining length.
Step-by-step explanation:
Consider the provided information.
A 12-inch candle is lit and steadily burns until it is burned out.
The length of the candle is 12 in.
The burned length of the candle is 4 in.
That means the remaining length is 12 - 4 = 8 in
The burned length of the candle is 7.5 in.
That means the remaining length is 12 - 7.5 = 4.5 in
Hence, the remaining length of the candle varies from 8 inches to 4.5 inches.
Suppose b represents the burned length of the candle in inches (or the number of inches that have burned from the candle since it was lit) and r represents the the remaining length of the candle (in inches).
The required expression is: