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!!

Guest Sep 18, 2019

#1**+3 **

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)

ElectricPavlov Sep 18, 2019

#3**+3 **

ln is the natural logarithm function ln (e^{x}) = 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

ElectricPavlov Sep 18, 2019

#4**+2 **

Oh! Okay. Now it makes more sense. Sorry again. Thank you very much for helping.

Guest Sep 18, 2019

#5**+2 **

You are welcome...... you will learn a lot about ln log e 10^{x }on down the road.....

ElectricPavlov
Sep 18, 2019