The population of a town, in thousands, is modeled by the equation p(t)=50⋅(1.06)t where t is time measured in years.About how many years will it take for the population to double? Round to the nearest year. Explain how you know
Q. The population of a town, in thousands, is modeled by the equation p(t)=50⋅(1.06)t where t is time measured in years.About how many years will it take for the population to double? Round to the nearest year. Explain how you know
Identify Population and Condition: Identify the initial population and the population doubling condition.The initial population is given by p(0)=50 (since 1.060=1). To double, the population needs to reach 100 thousand.
Set Up Equation for Doubling: Set up the equation to solve for the time it takes for the population to double.We need to find t such that p(t)=100.So, we set up the equation 50×(1.06)t=100.
Simplify Equation for t: Simplify the equation to solve for t.Divide both sides of the equation by 50 to isolate (1.06)t on one side:(1.06)t=50100(1.06)t=2
Use Logarithms to Solve: Use logarithms to solve for t.Take the natural logarithm (ln) of both sides to remove the exponent on the left side:ln((1.06)t)=ln(2)t⋅ln(1.06)=ln(2)
Isolate and Solve for t: Isolate t and solve for its value.Divide both sides by ln(1.06) to solve for t:t=ln(1.06)ln(2)
Calculate t Value: Calculate the value of t using a calculator.t≈ln(2)/ln(1.06)t≈0.69314718056/0.05826890812t≈11.895661236
Round to Nearest Year: Round the answer to the nearest year.Since we are looking for an approximation to the nearest year, we round 11.895661236 to 12.
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