I've tried but I dont exactly know how to solve this. I don't know what the "e" means or how I find the years. Please show how to solve this because I don't understand. Thanks!!
e = 2.7182818284590452 (see the 'e' on the calculator?)
So solve this for t (the years the question is asking )
11200 = 5600 e.059t First divide both sides by 5600
2 = e.059t Now take the ln of both sides
.693147181= .059t Now divide both sides by .059 to find t years = 11.78 years ~~ 12 years (rounded)
ln is the natural logarithm function ln (ex) = x the ln function should be on your computer/calculator to solve these type of questions
ln (2) = .693147181 for the left hand side of the equation
ln(e.059t) = .059t for the right hand side of the equation
Oh! Okay. Now it makes more sense. Sorry again. Thank you very much for helping.
You are welcome...... you will learn a lot about ln log e 10x on down the road.....