Question

There are currently 58 million cars in a certain country, increasing exponentially by 5.5% annually. how many years will it take for this country to have 79 million cars? round to the nearest year.

Answer 1

79/58=e^0.055t
1.3620690=e^0.055t
ln 1.3620690=ln e^0.055t=0.055t ln e=0.055t
t=5.6183 years
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