document.write( "Question 1129295: Could someone please help explain how to solve for the years:
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document.write( "The population of a small town is modeled by the equation
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document.write( "P = 1650e^0.5t where t is measured in years. In approximately how many years will the town's population reach 20,000? (Round your answer to two decimal places.) \r
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Algebra.Com's Answer #745850 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! The population of a small town is modeled by the equation \n" ); document.write( "P = 1650e^0.5t where t is measured in years. In approximately how many years will the town's population reach 20,000? (Round your answer to two decimal places.) \n" ); document.write( "----- \n" ); document.write( "Solve for \"t\":: \n" ); document.write( "--- \n" ); document.write( "20,000 = 1650*e^(0.5t) \n" ); document.write( "e^(0.5t) = 12.12 \n" ); document.write( "--- \n" ); document.write( "Since the variable is in the exponent, take the ln of both sides to get: \n" ); document.write( "0.5t = ln(12.12) = 2.495 \n" ); document.write( "t = 4.99 years \n" ); document.write( "----------- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "----------- \n" ); document.write( " |