shinebrightsports shinebrightsports
  • 12-07-2021
  • Mathematics
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What's the sum of the infinite geometric series where a1 = 240, and the common ratio is r = 1∕3 ?

Respuesta :

coolstick
coolstick coolstick
  • 12-07-2021

Answer:

360

Step-by-step explanation:

The formula for the sum of an infinite geometric series is a₁/(1-r), where a₁ represents the first value and r represents the ratio. We can plug in our values here to get

a₁/(1-r) = 240/(1-1/3)

= 240 / (2/3)

= (240/1) / (2/3)

= (240/1) * (3/2)

= 360

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