bdelgado75 bdelgado75
  • 18-12-2019
  • Mathematics
contestada

1) a, = an-1-9
a, = 25

Respuesta :

Аноним Аноним
  • 18-12-2019

Answer:

an-1-9

25n-1-9

25n-10=0

25n=0+10

25n=10

divide both sides by 25

25n/25 =10/25

n=2/5

Step-by-step explanation:

Answer Link
FrightfulMarty FrightfulMarty
  • 18-12-2019

Answer:

n=1.4

Step-by-step explanation:

given  a=25

a=an-1-9..............(1)

put a=25 in equ (1)

25=25n-1-9

25=25n-10

25n=25+10=35

n=[tex]\frac{35}{25}[/tex]=1.4

n=1.4   answer

Answer Link

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