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Xaze
 one year ago
Help please? Will fan and medal !
Xaze
 one year ago
Help please? Will fan and medal !

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Xaze
 one year ago
Best ResponseYou've already chosen the best response.0Diana received 65 points on a project for school. She can make changes and receive threetenths of the missing points back. She can do this 10 times . Create the formula for the sum of this geometric series, and explain your steps in solving for the maximum grade Diana can receive.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0first correction she gets 35(3/10 second correction she gets 35(3/10)^2 third correction she gets 35(3/10) ^3 And so on Added together we get ∑ 35(3/10)n+1 as n goes from 0 to ∞ 35(3/10) ∑ (3/10)n the sum of an infinite geometric series is a/(1r) which in this case is 1/(7/10) = 10/7 35(3/10)(10/7) = 15 So maximum grade is 65 + 15 = 80 The series was converging because 0 < r < 1

Xaze
 one year ago
Best ResponseYou've already chosen the best response.0@_greatmath7, Thank you very much, you're truly a lifesaver! Granted you your medal... think you can help with a few more? ^^

Xaze
 one year ago
Best ResponseYou've already chosen the best response.0Thanks! But I'll go ahead and post it as a new question, so I can give you more medals, haha ^^

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0u don't have to but thanks. :)
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