Asked by Anonymous
if the 4th term of an arithmetic sequence is 24 and the 12th term is 56,what is the 28th term?
Answers
Answered by
mathhelper
So many of these same type of problems!
term4 = a + 3d = 24
term12 = a + 11d = 56
subtract:
8d = 32
d = 4
then a + 12 = 24
a = 12
use the same definition I just used to find term28
term4 = a + 3d = 24
term12 = a + 11d = 56
subtract:
8d = 32
d = 4
then a + 12 = 24
a = 12
use the same definition I just used to find term28
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