SOLUTION: Log11 5 ÷ log11 15=? show solution without calculator

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Question 1133471: Log11 5 ÷ log11 15=? show solution without calculator
Found 3 solutions by rothauserc, MathTherapy, greenestamps:
Answer by rothauserc(4718) About Me  (Show Source):
You can put this solution on YOUR website!
Use the log rule for product, that is
:
log base a (xy) = log base a (x) + log base a (y)
:
Log11 5 ÷ log11 15 = log11 (5 * 15) = log11 (75)
:
Use definition of logarithm
:
y = log11 (75)
:
75 = 11^y
:
y is the logarithm
:
y is approximately 1.8, that is, 11^1.8 = 74.9
:

Answer by MathTherapy(10552) About Me  (Show Source):
You can put this solution on YOUR website!
Log11 5 ÷ log11 15=? show solution without calculator
The answer by the other person is WRONG!!

log+%2811%2C+%285%29%29%2Flog+%2811%2C+%2815%29%29. Applying the CHANGE-OF-BASE rule, we get:

%28log+%28%285%29%29%2Flog+%28%2811%29%29%29%2F%28log+%28%2815%29%29%2Flog+%28%2811%29%29%29 ======>

Answer by greenestamps(13200) About Me  (Show Source):
You can put this solution on YOUR website!


Note for tutor @MathTherapy....

Right solution method, and right calculations; but you didn't write your final answer correctly....

might want to fix that