Asked by Anonymous

The 8th term of an AP is 38 and the 12rh term is 58.find the 30th term
Answered by mathhelper
a+7d=38
a+11d=58
subtract
4d = 20
d=5
backsub
a+35=38
a = 3

now use your formulas I use to find term30
Answered by Ariyo Fortune
Tn=a+(n-1)d,3+(30-1)*5=148
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