6+2+2/3+2/9+...+a6

- anonymous

6+2+2/3+2/9+...+a6

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- jim_thompson5910

do you see how the pattern is going?

- anonymous

no i dont understand it

- jim_thompson5910

well each time, the previous term is multiplied by 1/3 to get the next term

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## More answers

- jim_thompson5910

example: 6 times 1/3 = 2

- anonymous

okay

- anonymous

so how would i solve it

- jim_thompson5910

what term comes after 2/9 ?

- anonymous

im thinking 2/27

- jim_thompson5910

yep

- jim_thompson5910

and after that?

- anonymous

2/71

- jim_thompson5910

81, not 71

- jim_thompson5910

so we have these 6 terms
6, 2, 2/3, 2/9, 2/27, 2/81

- anonymous

okay oh i did the math wrong

- jim_thompson5910

now add up the 6 terms

- anonymous

and it says round you answer to the nearest tens hundreths

- anonymous

i got 64/
19683

- anonymous

is that right

- jim_thompson5910

you should get 728/81 when you add up the 6 terms

- jim_thompson5910

728/81 = 8.98765432098766 approximately

- anonymous

im confused

- jim_thompson5910

now just round 8.98765432098766 to the nearest ten-thousandths

- jim_thompson5910

where at?

- anonymous

how would you round it from where

- jim_thompson5910

8.98765432098766 would round to 8.9877 if you round it to the nearest ten-thousandths

- jim_thompson5910

find the ten-thousandth's place, then look to the next digit over to see if you round up or not

- anonymous

oh if its greater than 5

- jim_thompson5910

yes

- jim_thompson5910

|dw:1444363023273:dw|

- jim_thompson5910

|dw:1444363030825:dw|

- anonymous

it said it was wrong

- jim_thompson5910

|dw:1444363041738:dw|

- jim_thompson5910

what did you type in?

- anonymous

yeah i did this 8.9877 and it said it was wrong

- jim_thompson5910

can I see a screenshot of the full problem?

- anonymous

oh if i get it wrong it goes to the next one but ill show you the next one okay

- jim_thompson5910

oh then nvm

- jim_thompson5910

post the new question as a new post (on the left side where it says "ask a question")
make sure to post the screenshot so the problem is clearly shown and there's no confusion

- anonymous

yeah i got another one i need help on

- jim_thompson5910

make the new post

- anonymous

okay hold on

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