Value of t for a germ population to double its original value Date of Exam May 2019 Subject Mathematics, Surveying and Transportation Engineering Problem A germ population has a growth curve $Ae^{0.4t}$. At what value of $t$ does its original value doubled? A. t = 7.13 C. t = 1.73 B. t = 1.37 D. t = 3.71 Answer Key Click here to show or hide the answer key [ C ] Solution Click here to expand or collapse this section $P = Ae^{0.4t}$ Initial population is when t = 0 $P_o = Ae^{0.4(0)} = A$ Time t when P = 2P_{o} $2A = Ae^{0.4t}$ $t = 1.73$ ← answer Category Algebra Logarithmic Function Exponential Equation Population Growth Log in or register to post comments