Question 1000216
Formula Used:
A = P*e^(r*t)


Given values:
A = 100,000
r = 0.04
t = 30


What we want to find: P
The goal is to solve for P. In other words, isolate P on its own side.


Note: 'e' is the constant 2.718... It's a lot like pi = 3.14... in that it is a decimal value that goes on forever without any fixed pattern.


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A = P*e^(r*t)


100,000 = P*e^(0.04*30) ... plug in the given values (see above)


100,000 = P*e^(1.2)


100,000 = P*3.32011692


100,000/3.32011692 = P*3.32011692/3.32011692 ... Divide both sides by 3.32011692.


30,119.4212160457 = P


P = 30,119.4212160457


P = 30,119.42


So you need to invest <font color="red">$30,119.42</font>