Question

Using A=Pe^rt
Investment:$500
rate:?
time to double:?
Amount after 10 years:$1505
Find time to double, and rate

Answer 1

please explain!!!

Answer 2

Yo! Same story, use the given information and find r first!

Answer 3

but im a little confused...so 1505=500e^r(10)???

Answer 4

Yes hard, that's correct

Answer 5

haha ok just making sure thanks

Answer 6

and nope, the rate is not 30.1 percent.

Answer 7

is it0.1102? or 11.02?

Answer 8

yep. use 0.1102 in your formula

Answer 9

sweet thanks

Answer 10

to find the double do you need the 1505?

Answer 11

nope

Answer 12

would you just do 1000=500e^0.1102(t)????

Answer 13

nevermind..

Answer 14

yep

Answer 15

what would do if you had to find the initial investment, without having the time to double?