Question 388778
If the population of a city is 178500 and it is growing at 
the rate of 2.1% per annum, in how many years will the 
population be 210000?
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A(t) = 178500*(1+0.021)^t
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210,000 = 178500*1.02^t
1.02^t = 1.17647
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t = log(1.17647)/log(1.02)
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t = 8.207 years
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Cheers,
Stan H.