Question

Pertnyaannya jumlah hasil pertanian selama pendataan adalah...
Bantuin sama jalannya ya kak, tolong

Answer 1

Verified answer

Barisan dan Deret

Barisan Aritmatika (tetap)

 a  = 25
U5 = 105

U5 ⇒ 25 + (5 - 1) b = 105
                  (5 - 1) b = 80
                     5b - b = 80
                          4b = 80
                            b = 20
U10
= 25 + (10 - 1) 20
= 25 + (9) . 20
= 25 + 180
= 205

Jumlah hasil pertanian
S10
= 10/2 (25 + 205)
= 5 (230)
= 1150 ton
Semoga Membantu!!!