SOLUTION: Can you please help me??? & can you please do it step by step??? Thank you! 5 log base 25 (4x) = 8

Algebra ->  Logarithm Solvers, Trainers and Word Problems -> SOLUTION: Can you please help me??? & can you please do it step by step??? Thank you! 5 log base 25 (4x) = 8      Log On


   

Question 251114: Can you please help me??? & can you please do it step by step??? Thank you!
5 log base 25 (4x) = 8
Answer by MRperkins(300) About Me  (Show Source):
You can put this solution on YOUR website!
Email me at justin.sheppard.tech@hotmail.com
I will provide you with a link to an online whiteboard where I will help you with your logarithm problems. I will edit my answer while I am waiting for your response to try and include a summary of how to do this, but the whiteboard is definitely the best way to go.
Respectfully,
Justin
EDIT: 5 log base 25 (4x) = 8
log base 25 (4x) = 8/5
%28log+4x%29%2F%28log+25%29=8/5 <---Change of base formula
log 4x=(8/5)log 25
.
10%5E%28%288%2F5%29log+25%29=4x
.
%2810%5E%28%288%2F5%29log+25%29%29%2F4=x
Calculator approximation is x=43.1166