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Suppose the population of trout in a certain stretch of a river is 4000. In about how many years will the population of trout be 700 if the decay rate is 35%? Use the equation 700 = (4000)(0.65)x and round the value of x to the nearest year. |
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Explanation & Answer
700/4000=0.65^x
7/40=0.65^x
0.175=0.65^x
log 0.175=xlog0.65
x=log0.175/logo.65
4 years
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