Question

help bantu kak :( pakai Cara!

plsss Yang masih On dan Jago Urusan ini!​

Answer 1

Penjelasan dengan langkah-langkah:

17) C

20 × 60 + s x 70 = (20 + s) × 62

1.200 + 70s = 1.240 + 62s

(70 – 62)s = 1.240 – 1.200

8s = 40

s = 40/8

s = 5 siswa

18)

30 × 5,8 + 8 × R = (30 + 8) × 6,0

174 + 8R = 228

8R = 228 – 174

8R = 54

R = 54/8

R = 6,75

Answer 2

Number 17
Opsi C
= 20 × 60 + s × 70
= ( 20 + s ) × 62
= 1.200 + 70s
= 1.240 + 62s
= ( 70 – 62 )s
= 1.240 – 1.200
8s = 40
s = 40 : 8
s = 5 siswa

Number 18
= 30 × 5,8 + 8 × R
= ( 30 + 8 ) × 6,0
174 + 8R = 228
8R = 228 – 174
8R = 54
R = 54 : 8
R = 6,75


See you!!
Answer by Tee Kay