SOLUTION: If 2^y=10, find the value of 8^(2y-1)

Question 1186695: If 2^y=10, find the value of 8^(2y-1)
Found 2 solutions by MathLover1, ikleyn:
Answer by MathLover1(20849) (Show Source): You can put this solution on YOUR website!

If , find the value of
first find
....take log of both sides

substitute in

Answer by ikleyn(52781) (Show Source): You can put this solution on YOUR website!
.
If 2^y=10, find the value of 8^(2y-1)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

= = = now replace in this formula by to get = = = 125000. ANSWER

Solved.

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