Answer:
240 - 5x and the candle will be at 0 mm in 48 seconds
Step-by-step explanation:
Step 1: Convert words into an expression
A 240 mm candle is burning and shrinks in height 5mm per second
240 - 5x
Step 2: If needed solve for x
240 - 5x - 240 = 0 - 240
-5x / -5 = -240 / -5
x = 48
Answer: 240 - 5x and the candle will be at 0 mm in 48 seconds
Graph Below: (0, 240) shows the initial start and (48, 0) shows the ending point