LaraGad LaraGad
  • 12-06-2022
  • Mathematics
contestada

If 4^x * 5^y = 20, 4^y * 5^x * = 20^2 Then x + y =
1
2
3
4

with explanation pls

Respuesta :

surjithayer surjithayer
  • 12-06-2022

Answer:

Step-by-step explanation:

[tex]multiply\\4^x*5^y*4^y*5^x=20*20^2\\4^{x+y}*5^{x+y}=20^{1+2}\\(4*5)^{x+y}=20^3\\20^{x+y}=20^3\\x+y=3[/tex]

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