October 19th, 2018, 06:49 AM  #1 
Newbie Joined: Oct 2018 From: gĂ¶teborg Posts: 1 Thanks: 0  Solve R
Hi. I have the following problem and need to solve r. 26,51= ((10,360232)/((1+r)^4)))+((11,29265288)/((1+r)^5)))+((12,3089916392)/((1+r)^6))) Thanks for the help. Last edited by skipjack; October 19th, 2018 at 08:02 AM. 
October 19th, 2018, 07:21 AM  #2 
Senior Member Joined: Sep 2016 From: USA Posts: 578 Thanks: 345 Math Focus: Dynamical systems, analytic function theory, numerics 
Is r measured in the same units as sunglasses happy face?

October 19th, 2018, 08:12 AM  #3 
Global Moderator Joined: Dec 2006 Posts: 20,383 Thanks: 2011 
The given equation isn't a differential equation. If r has to be positive, it's approximately 0.0503674.

October 19th, 2018, 01:09 PM  #4 
Math Team Joined: Oct 2011 From: Ottawa Ontario, Canada Posts: 14,145 Thanks: 1003 
~ 1.853 if negative What does your monster do : present value of 3 amounts or something? Last edited by Denis; October 19th, 2018 at 01:13 PM. 
October 19th, 2018, 03:33 PM  #5 
Math Team Joined: Oct 2011 From: Ottawa Ontario, Canada Posts: 14,145 Thanks: 1003  Code: 0 [26.51] 1 .00 2 .00 3 .00 4 10.36 5 11.29 6 12.31 with 3 unequal coupons (as shown above) which is sold for $26.51: what interest rate does that represent? 

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