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27 votes
Let f(d)=-6d+54 represents the amount of firewood purchased and each night you burn six pieces of firewood. D = number of days and F = pieces of firewood. when will there be 36 pieces of firewood left?

Answers: a. end of first day B. End of second day C. end of third day D. End of fourth day

User Iamjwc
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1 Answer

15 votes
15 votes

Answer: C. End of third day

Step-by-step explanation:

The question is asking when there will be 36 pieces left, so you start with the equation:

-6d + 54 = 36

Then, solve this equation:

-6d + 54 = 36

-6d = -18 (subtract 54 from both sides)

d = 3 (divide both sides by -6)

It will take 3 days until there are 36 pieces left, which is the end of the third day.

User Fgul
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