SOLUTION: A candle burns at a rate of 1 inch per hour. The original height of the candle is 12 inches. The function of the candle burning can be represented by f(x)=-x+12. Find x when f(x)=8

Algebra ->  Functions -> SOLUTION: A candle burns at a rate of 1 inch per hour. The original height of the candle is 12 inches. The function of the candle burning can be represented by f(x)=-x+12. Find x when f(x)=8      Log On


   

Question 999115: A candle burns at a rate of 1 inch per hour. The original height of the candle is 12 inches. The function of the candle burning can be represented by f(x)=-x+12. Find x when f(x)=8.
Found 2 solutions by Alan3354, stanbon:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
f(x)=-x+12. Find x when f(x)=8
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Wherever there's x, sub 8.

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
A candle burns at a rate of 1 inch per hour. The original height of the candle is 12 inches. The function of the candle burning can be represented by f(x)=-x+12. Find x when f(x)=8.
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Solve:: -x+12 = 8
-x = -4
x = 4
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Cheers,
Stan H.
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