SOLUTION: If log 2x + log 5y = 1, then xy =

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Question 692931: If log 2x + log 5y = 1, then xy =
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
log(2x) + log(5y) = 1

log(2x*5y) = 1

log(10xy) = 1

log(10) + log(xy) = 1

1 + log(xy) = 1

log(xy) = 1-1

log(xy) = 0

xy = 10^0

xy = 1

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