loredoelena41
loredoelena41 loredoelena41
  • 26-04-2018
  • Mathematics
contestada

if log10(x^2y^3) =7 and log 10(x/y) =1 then x = blank and y= blank

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obenam obenam
  • 26-04-2018
From the second equation we get 
[tex] \frac{x}{y} =10[/tex]
Faim the first equation we get:
[tex]x^2y^3=10^7[/tex]
We have [tex]x=10y[/tex] then 
[tex](10y)^2y^3=10^7\\y^5=10^5\\y=10[/tex]
Then [tex]x=10y=100[/tex]
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