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Gasoline prices are raising at a rate of 0.3% per month. What is their doubling time? By what factor will their prices increase in 2 years? 8 years? What is their doubling time? _______ months

User Dennbagas
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Answer:

n = doubling time in months

(1.03)ⁿ = 2

log₁.₀₃(2) = n

n = 23.44977... ⇒ 23.4 months

After 2 years:

(1.03)²⁴ = 2.03279... ⇒ 2.03

After 8 years:

(1.03)⁹⁶ = 17.0755... ⇒ 17.08

User Goldengirl
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