SOLUTION: if log3 = y and log5 = z, so log45 is? please answer this question. thx before=D

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Question 516998: if log3 = y and log5 = z, so log45 is?
please answer this question.
thx before=D

Answer by nerdybill(7384) About Me  (Show Source):
You can put this solution on YOUR website!
if log3 = y and log5 = z, so log45 is?
.
Starting with:
log(45)
log(5*3*3)
log(5) + log(3) + log(3)
substituting in the given values:
z + y + y
therefore,
log45 = 2y + z