Question

For what value of k will k + 9, 2k – 1 and 2k + 7 are the consecutive terms of an A.P.?

Answer 1

Answer:

18

Step-by-step explanation:

As we know, a2 – a1 = a3 – a2

2k – 1 – (k + 9) = 2k + 7 – (2k – 1)

2k – 1 – k – 9 = 2k + 7 – 2k + 1

k – 10 = 8 ∴ k = 8 + 10 = 18

Hope it helps !!

Marke me BRAINLIEST !

Vincent

Answer 2

Answer:

Step-by-step explanation: solution is in the attachment