SOLUTION: A population of 1200 people was reduced to 900 people in recent disaster. It is estimated that the humans will reproduce at a 5% rate. What equation should i use to predict how lon

Algebra ->  Equations -> SOLUTION: A population of 1200 people was reduced to 900 people in recent disaster. It is estimated that the humans will reproduce at a 5% rate. What equation should i use to predict how lon      Log On


   

Question 984285: A population of 1200 people was reduced to 900 people in recent disaster. It is estimated that the humans will reproduce at a 5% rate. What equation should i use to predict how long it will take to restore the population of the people? (People were used as an example)
Answer by josgarithmetic(39630) About Me  (Show Source):
You can put this solution on YOUR website!
p=900%2A%281.05%29%5Et
p, population
t, time in years
Let p=1200
Solve for t.


Comments About Other Questions:
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The formula or equation shown can be derived from earlier and simpler principles, finding the pattern, and then simplifying.
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The dot between the 900 and the (1.05) shows up upon rendering without regard to being included in what we type. On paper, we may include the dot, or not.
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What is p=1200 ?
Read the problem description. How much time for the population to return to 1200; the growth equation is for 5% growth rate starting with population 900, and returning to the fox's previous 1200 population.
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You can use any calculator that you want or are allowed. Try to choose a scientific calculator. You could use a graphing calculator but these are more expensive than you should need, since scientific calcs are much cheaper.