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anonymous
 one year ago
Find the four arithmetic means between 21 and 36.
anonymous
 one year ago
Find the four arithmetic means between 21 and 36.

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jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.121 is the first term 21+d is the next term right after the first term. The d is some unknown common difference add d to the last term, 21+d, to get (21+d)+d = 21+d+d = 21+2d

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1so far we have first term: 21 second term: 21+d third term: 21+2d what would be the fourth term?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1correct, how about the fifth term?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1you add d to the fourth term fifth term = (fourth term) + d

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1yep, so we have this summary so far first term: 21 second term: 21+d third term: 21+2d fourth term: 21+3d fifth term: 21+4d

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1the second term through the fifth term will be the middle four terms the last term, the sixth term, we need is sixth term = (fifth term) + d sixth term = (21+4d) + d sixth term = 21+5d

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1first term: 21 second term: 21+d third term: 21+2d fourth term: 21+3d fifth term: 21+4d sixth term: 21+5d

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1the sixth term is also equal to 36 which is given at the top, so, sixth term = 21+5d 21 + 5d = 36 solve for d and tell me what you get

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0one thing, how is the 6th term equal to 36?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1we have this sequence at first dw:1439334777260:dw

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1dw:1439334815361:dw

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1dw:1439334837901:dw

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1the X,Y,Z,W in the middle represents the second through fifth terms

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0but how did you know it was 6 terms between?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1`Find the four arithmetic means between 21 and 36.` we basically have an arithmetic sequence starting from 21 with four terms after that (unknown for now) and then 36 after that fourth unknown term

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1there are 4 terms between and not 6

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ohh i get it! thank you, btw i got 3

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1correct, d = 3

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1now compute 21+d 21+2d 21+3d 21+4d to get those four unknown terms

anonymous
 one year ago
Best ResponseYou've already chosen the best response.024 , 27, 30, 33 all of them are the anwser? sorry i was called out of the room for a second

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1very good, you got it

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0thank you! can i tag u in other question i post if i need help? im behind in school with work and all and kinda freaking out lol
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