124 is the __ term of -2, 5, 12,...

JetssheetaDumcb

JetssheetaDumcb

Answered question

2022-10-15

124 is the __ term of -2, 5, 12,...

Answer & Explanation

Cavalascamq

Cavalascamq

Beginner2022-10-16Added 21 answers

The nth term of an arithmetic sequence is given by t n = a + ( n - 1 ) d . Here, we have that a=−2, d=7, t n = 124 and n=?
t n = a + ( n - 1 ) d
124 = - 2 + ( n - 1 ) 7
124 = - 2 + 7 n - 7
133 = 7 n
133 7 = 7 n 7
n = 19

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